Earlier this month, Trump set a 50-day deadline for Moscow to agree to a ceasefire, threatening fresh sanctions and tariffs if it failed to do so. Trump also announced new military support for Kyiv, with a particular focus on strengthening Ukraine's anti-drone and anti-missile defenses.

A Russian airstrike on a prison in a frontline region in southeastern Ukraine has killed 16 people and wounded more than 30 others, according to Ukrainian officials.