Wall Street shares fluctuated while Europe stock markets fell Monday ahead of pivotal talks between US President Donald Trump, Ukrainian counterpart Volodymyr Zelensky and European leaders in Washington.

The broad-based S&P 500 was flat and the tech-heavy Nasdaq rose slightly in early deals in New York. European markets were in the red in afternoon deals.

Oil prices seesawed as traders weighed the impact of the talks and they could mean for sanctions-hit Russia, a major producer of crude oil.

The gathering is a follow-up summit to Trump’s meeting with Russian President Vladimir Putin in Alaska, which failed to produce a ceasefire in the war in Ukraine.

Zelensky, who is under pressure from Trump to give up Crimea and abandon its NATO ambitions, said ahead of the gathering in Washington

See Full Page