KHARKIV, Ukraine (Reuters) -At least one person was killed and 71 wounded in Russian drone attacks on the northeast Ukrainian city of Kharkiv, officials said on Monday, and President Volodymyr Zelenskiy called for more support from Kyiv's allies.

Ukraine was hit by the largest airborne assault of the war after Russian unleashed more than 700 drones and missiles targeting 14 of the country's 24 provinces.

On July 3, a deadly Russian strike on the central city of Poltava killed two people and injured 47 others. The attack caused a fire at the city's military conscription office and heavily damaged nearby civilian buildings, including civilian houses.