A Russian drone attacked Sumy, damaging residential buildings and the power grid. A mother and son asked for medical assistance, according to the head of the Sumy regional military administration, Oleh Hryhorov.

A sustained Ukrainian drone attack on Russia caused Moscow's major airports to be temporarily closed and saw at least 140 flights cancelled, officials said.

According to Zelenskyy, six other people were wounded in the attack on Odesa, including a child, and critical infrastructure was damaged in Ukraine’s northeastern Sumy region.

Russia is open to peace with Ukraine but achieving its goals remains a priority, Kremlin spokesman Dmitry Peskov said Sunday, days after U.S. President Donald Trump gave Moscow a 50-day deadline to agree to a ceasefire or face tougher sanctions.