U.S. futures traded mostly lower Tuesday as shares tied to artificial intelligence faced renewed selling pressure and oil prices increased due to continued fighting in the Middle East.

Futures on the S&P 500 slipped 0.1 percent, Nasdaq futures dropped 0.5 percent, while Dow Jones Industrial Average futures rose 0.2 percent.

On its first day of trading, South Korean artificial intelligence firm Elice Group saw its shares plunge 30 percent, reflecting investor concerns over mounting debt levels in the technology sector amid a fresh wave of selling. Similar worries targeted U.S. companies like CoreWeave, which fell another 4.5 percent in premarket trading after already declining 30 percent this month.

Concerns about sector debt are heightened by persistent inflation and growing expectations that the Federal Reserve may raise interest rates again this year to curb economic activity.

U.S. benchmark crude oil surged 2 percent to reach 100.55 dollars per barrel, while Brent crude advanced 1.6 percent to 111.25 dollars per barrel.

With uncertainty surrounding the timeline for normalization in the energy sector due to the conflict involving Iran, oil prices are expected to remain elevated. The casualty count from a Houthi missile attack on a military camp in southern Yemen climbed to 73, all new recruits, marking the deadliest incident since the escalation began three months ago, according to a senior Yemeni official.

Markets in Europe were also affected by regional turmoil. France's CAC 40 index declined 0.8 percent to 7,809.10, Germany's DAX fell 0.8 percent to 25,109.83, and Britain's FTSE 100 lost 0.6 percent to 10,702.16.

Protests are mounting across Europe this autumn, driven by higher fuel expenses, dissatisfaction with education systems, reduced public services, and a housing shortage. Demonstrations in cities throughout France, Italy, and Albania have involved arrests, theft, injuries, and clashes.

Several major American firms, including Netflix and SpaceX, are set to release their quarterly earnings after the market close on Tuesday.

Netflix revealed plans last week to reduce its staff by around 6 percent, or nearly 1,000 jobs, as part of broader organizational adjustments. SpaceX, which went public in June under Elon Musk's leadership, will report its second quarter results. Musk stated on Monday that he intends to distribute one share of SpaceX to every child in America next year.

The U.S. dollar weakened to 158.14 yen from 158.46 yen, and the euro fell to 1.1211 dollars from 1.1227 dollars.