Poland said Monday it would closea second Russian consulate over a May 2024 blaze that destroyed the largest shopping mall in the capital, Warsaw, saying the evidence showed Moscow was behind it.

As Poland gears up for the May 18 presidential election, a striking political shift is taking shape: the once-unifying cause of support for Ukrainians is turning into a wedge issue on the campaign trail.

The Lithuanian investigation found that a May 9, 2024 arson attack on an IKEA store in Vilnius, as well as the May 12, 2024 Marywilska fire, were set by Ukrainian citizens acting on behalf of Russia, Tusk wrote in March. A week earlier, Polish prosecutors had said a Belarusian refugee was responsible.

European leaders from Britain, France, Germany and Poland joined Ukrainian President Volodymyr Zelensky in Kyiv in urging Russian President Vladimir Putin to accept a 30-day ceasefire or face more sanctions.