6:31 am today

By Kosta Gak, Chris Liu Chris Lau, Yong Xiong and Lucas Lilieholm, CNN

A burning building following an air attack at an undisclosed location in the Moscow region, amid the ongoing Russian-Ukrainian conflict.

At least three people were killed near Moscow after Ukraine targeted Russia with more than 500 drones overnight, Russian state news agency TASS reported Sunday, citing local and military officials.

The attack on Moscow is "the largest in over a year," according to TASS, citing information released by the city's mayor, and follows a huge wave of Russian strikes earlier in the week targeting Ukraine's capital, Kyiv. Those attacks killed at least 25 people and injured dozens of others, according to Ukrainian authorities.