US equity indexes were mixed Monday as technology and consumer discretionary sectors fell and crude oil jumped amid reports of strikes between Russia and Ukraine.

* All 20 worst performers were technology names among stocks with market capitalization exceeding $200 billion, according to data compiled by Finviz.

* Ukrainian President Volodymyr Zelensky said Russia targeted six energy facilities in Ukraine, BBC reported. Meanwhile, the Trump administration has warned Ukraine and allies in Europe that the US could suspend intelligence sharing and European purchases of US weapons for Ukraine if Kyiv does not halt its deep strikes on Russian energy facilities, two European officials told CNN.

* November West Texas Intermediate crude oil rose $1.46 to settle at $93.31 per barrel, while December Brent crude, the global benchmark, was last seen up $1.46 at $106.18.

* Meta Platforms (META) shares were up about 3.4%, among the best performers on the Nasdaq and S&P 500, after the company launched two frontier artificial intelligence models.

* Ciena's (CIEN) shares fell nearly 10%, the worst performer on the S&P 500, after the company announced Monika Fahlbusch's appointment as its chief people officer, effective Monday.