Explosions continued throughout the night and Ukraine's Air Force warned of a ballistic missile attack on the capital. Air raid sirens sounded in several regions of Ukraine on Tuesday morning after Russia launched missiles toward Chernihiv, Kyiv and Zhytomyr oblasts.

A day before Russian, Ukrainian and U.S. teams meet to talk peace, Putin's forces pounded Ukraine's energy infrastructure with dozens of drones and missiles.

Feb 3 (Reuters) - Ukrainian President Volodymyr Zelenskiy said on Tuesday that Ukraine was waiting for U.S. reaction to Russia's overnight attack on his country's cities that caused further damage to Ukraine's energy infrastructure.

Ukraine has agreed with western partners that persistent Russian violations of any future ceasefire agreement would be met by a co-ordinated military response from Europe and the US, according to people briefed on the discussions.

As losses mount, the pace of Russia's advance has at times been slower than the Battle of the Somme during World War I, a report says.

Zelenskyy says Ukraine will "take corresponding steps" as Trump says Putin agreed to stop bombing Ukrainian cities for a week.

US President Donald Trump was "unsurprised" after Russia resumed intense attacks on Ukraine, ending a cold-weather pause he personally requested from Vladimir Putin, the White House said Tuesday.Trump announced on Thursday that Putin had agreed to pause attacks on Kyiv for a week during a spell of freezing weather,