Russia Steps Up Airstrikes On Ukraine, 2 Days after Moscow Terror Attack

Ukraine's capital Kyiv and the western region of Lviv came under a "massive" Russian air attack early Sunday, officials said, while Poland said one of the Russian missiles breached its airspace.

Russia and Ukraine have been engaged in a series of deadly aerial attacks, with Sunday's strikes also coming a day after the Russian military said it had seized the Ukrainian village of Ivanivske, west of Bakhmut.

A militant attack on a Moscow concert hall on Friday that killed at least 133 people also became a new flashpoint between the two arch-rivals.