By Anna Pruchnicka KYIV, May 13 (Reuters) - Russia unleashed a massive daytime drone attack on Ukraine on Wednesday, targeting critical infrastructure in the west, killing at least six people and prompting NATO-member Poland to scramble fighter jets,

Ukraine has been targeted in another night of heavy Russian attacks.

He said Moscow had launched more than 670 attack drones and 56 missiles overnight, and air defence units shot down 41 of ​the missiles and 652 drones, the air force said.