A Russian drone strike on a residential area in Kharkiv killed seven people overnight, including a toddler and a 16-year-old boy, Ukrainian officials said Monday, as the United States pressed Kyiv to accept a swift deal to end the war.

Six children aged 6 to 17 were among 20 other people injured in the attack on Ukraine's second-largest city, Oleh Synehubov, governor of the wider Kharkiv region, wrote on Telegram.

The attack came as Ukraine's Volodymyr Zelenskyy was preparing for talks with Donald Trump in Washington later on Monday amid European fears the U.S. president could try to pressure Kyiv into accepting a peace settlement favorable to Moscow.

The air force said Russia launched 140 drones against Ukraine overnight, the largest total recorded in a single night since Aug. 4.

Kharkiv, which lies near northeastern Ukraine's border with Russia, has been the target of Russian drone and missile attacks throughout the war.