Ukrainian officials said Thursday that Russia launched a wave of missile and self-exploding drone attacks on the country.

Air raid sirens wailed nationwide. There were no immediate reports of the targets, but Kyiv’s mayor said a Russian missile strike killed one person, the first death from an attack in the capital since New Year’s Eve. Mayor Vitali Klitschko said two other people were injured in the strike..

The head of the Kyiv city administration said 15 cruise missiles were shot down. Serhii Popko said the missiles were fired “in the direction of Kyiv” but did not clarify if the capital itself was a target.

Odesa regional governor Maksym Marchenko reported that several facilities of energy infrastructure were damaged not just in the Odesa region, but other regions of Ukraine. That caused “significant problems with electricity supply.”

The attacks came after Germany and the United States announced Wednesday that they will send advanced battle tanks to Ukraine, offering what one expert called an “armored punching force” to help Kyiv break combat stalemates as the Russian invasion enters its 12th month.

Read more: US military's expanded combat training for Ukrainian forces begins in Germany 

Germany said it would supply Ukraine with dozens of Leopard 2 tanks from European countries, while the U.S. said it share Abrams M1 tanks.

Training for Ukrainian troops will begin in the coming days. Defense Minister Boris Pistorius said Ukrainian crews will start their training on German-made Marders, which are infantry fighting vehicles, and training on the heavier Leopard 2 tanks would start “a little later.”

“In any case, the aim with the Leopards is to have the first company in Ukraine by the end of March, beginning of April,” Pistorius added. “I can’t say the precise day.”