Russia launched an overnight barrage of drones and cruise and ballistic missiles at Kyiv, Ukraine's air force said Monday, as children prepared their return to school across the country after the summer vacation.

Several series of explosions rocked the Ukrainian capital in the early hours. Debris from intercepted missiles and drones fell in every district of Kyiv, injuring three people and damaging two kindergartens, Ukraine's Interior Ministry said. City authorities reported multiple fires.