Russia will carry out "massive co-ordinated strikes on a regular basis" against Ukraine, Foreign Minister Sergei Lavrov says after a major Ukrainian drone attack on Moscow.
Ukrainian forces struck a major Moscow oil refinery on Thursday for a second time in a week, sending huge plumes of black smoke over the capital and disrupting hundreds of flights at its airports in one of its biggest drone attacks, officials said.
The Ukrainian attacks left 17 people injured and damaged civilian infrastructure in the capital, local officials said.
