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Ukraine takes Russia fight to 'scorching sands' of Sahel
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Hurricane Isaias strengthens en route to US Gulf Coast
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Chinese AI tool pulled to prevent 'misuse' after South Korea hacks
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US activists deploy poll volunteers over Trump intimidation fears
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Asian stocks mostly up as traders weigh AI, oil dips after surge
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Saint Laurent designer Vaccarello leaves after glittering decade
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Walking through flames: orangutans rescued in Indonesia fires
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'Tough to stay here': Nepal flood survivors wait for homes
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LeBron shines in pre-season debut for re-tooled 76ers
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Malaysia closes schools in capital, parts of country due to haze
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Okinawa resolution calls for revision of US forces pact after murder
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Buccaneers stun Cowboys for first win of NFL season
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Verdict expected Friday in Mexico trial over murders of Australia, US surfers
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Activists hope trial will stop 'forever chemicals' at Italy plant
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New York mayor says asking Trump to withdraw ICE after shooting
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Guardians rally for 9-5 victory over White Sox to stay alive in MLB playoffs
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Walking through flames: orangutan rescued in Indonesia fires
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Asian stocks mixed amid AI concerns, oil dips after surge
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James shines in pre-season debut for re-tooled 76ers
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Wallabies expect fast-paced All Blacks in Bledisloe opener
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Fuel, fertilizer costs strain US farmers' support for Republicans in midterms
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Tech scammer Elizabeth Holmes focus of documentary by absurdist Nathan Fielder
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Trump's 'super intelligence' rebrand to sell AI faces uphill battle
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Climate hopes shift from politics to the courts
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Fiji demands US provide evidence Chinese official paid bribes for Beijing
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Will Nobel Peace Prize pick make waves at the White House?
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More than just football: How scandal-tainted City led Manchester's rebirth
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Trump rules out new Iran attack before US midterm elections
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Record Eden Park streak creates tension for All Blacks
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Far-right influencer shows Israel's coarse political turn
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EU trade chief seeks 'tangible outcomes' in China talks
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Seals and sea lions get hearing tested at Australia zoo
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Man City face Anfield cauldron after guilty Premier League verdicts
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Mourinho's Real Madrid playing catch-up in Clasico countdown
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CNN, MS Now, Politico urge judge to extend White House access
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Joy as USS Lincoln back home after troubled Gulf deployment
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Trump administration to launch new vaccine research center
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OpenAI says Iran, Russia influence ops busted
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Russian strikes kill 30 in Ukraine frontline city, talks set in US
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Anthropic bans 'cruel' behavior against its Claude AI
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US military to livestream firing squad execution of Fort Hood shooter
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Anne Carson's Nobel literature prize 'a proud moment for Canada': PM
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Aces star Wilson wins record-extending fifth WNBA MVP
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Montagliani to seek CONCACAF re-election in boost for Infantino: reports
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Undefeated 49ers seek Seahawks revenge
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Oil surges, stocks sink on jitters over US plans in Iran war
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Madrid mourns evicted retiree, 'icon' of Spain housing protests
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John Cena and Jessica Biel hit the gas in 'Matchbox: The Movie'
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OpenAI revenue gap report rattles AI stocks
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US, Ukrainians, Europeans to discuss 'new ideas' to end war
Stocks slip before economic updates
European and US stock markets slid on Wednesday as investors braced for key company earnings and economic growth data in the United States.
"Equity markets are back in the red as investors appear to prepare themselves for a disappointing earnings season for big tech," said Craig Erlam, senior market analyst at trading platform OANDA.
"Layoffs, missed headline numbers and downbeat forecasts are quickly becoming the norm."
Investors will later track the latest results from electric carmaker Tesla, headed by Twitter owner and billionaire Elon Musk.
That follows this week's earnings gloom from US corporate titans Microsoft and Johnson & Johnson.
"If Microsoft is anything to go by, we're in for another bumpy ride," Erlam noted, pointing to its plans to lay off 10,000 staff and fears the growth of its cloud business may be slowing.
Swissquote analyst Ipek Ozkardeskaya said Tesa was "doing very well... but record deliveries weren't enough to meet the market expectations over the past three quarters."
"And unfortunately, the expectations make the market price," she said.
Markets will absorb fourth-quarter US economic growth data for the world's biggest economy on Thursday.
- Smaller Fed rate hike -
Asian equities fluctuated as traders in several countries returned from the Lunar New Year break with recession fears still causing concern.
While markets have enjoyed a strong start to the year as a slowdown in inflation gives central banks room to temper their interest rate hikes, focus is now turning to the economic impact of last year's increases.
Worries about the growth outlook, and the impact of higher rates on company profits, are also offsetting optimism over China's reopening from years of zero-Covid measures.
Data showing a slight improvement in US factory and services activity was unable to settle nerves, with figures still showing the sectors in contraction.
Focus is also turning to next week's Federal Reserve policy meeting, with speculation growing that it will lift rates by 0.25 percentage points -- a smaller hike than in previous decisions.
Oil firmed as traders weighed the prospects of recession against the outlook for demand from China as it emerges from its zero-Covid policy.
Hong Kong, Shanghai and Taipei remained closed for the Lunar New Year holiday.
- Key figures around 1430 GMT -
London - FTSE 100: DOWN 0.4 percent at 7,728.94 points
Frankfurt - DAX: DOWN 0.4 percent at 15,040.04
Paris - CAC 40: DOWN 0.5 percent at 7,016.56
EURO STOXX 50: DOWN 0.6 percent at 4,127.02
New York - Dow: DOWN 0.8 percent at 33,477.47
Tokyo - Nikkei 225: UP 0.4 percent at 27,395.01 (close)
Hong Kong - Hang Seng Index: Closed for a holiday
Shanghai - Composite: Closed for a holiday
Euro/dollar: DOWN at $1.0884 from $1.0887 on Tuesday
Pound/dollar: DOWN at $1.2319 from $1.2334
Euro/pound: UP at 88.35 pence from 88.26 pence
Dollar/yen: DOWN at 129.70 yen from 130.17 yen
Brent North Sea crude: UP 0.1 percent at $86.37 per barrel
West Texas Intermediate: UP 0.3 percentat $80.38 per barrel
K.Thomson--BTB