Russia launched a wave of missile attacks on the Ukrainian capital of Kyiv and its surrounding region early Wednesday, killing at least 15 and wounding dozens.

The attacks began after midnight with air raid sirens sounding across the capital for more than an hour. Ukraine's air force had earlier warned that ballistic missiles were incoming.

What do we know about the Russian strikes?

Kyiv's military administration said seven sites in the city were hit. The strikes damaged residential buildings and warehouses:

"The enemy is once again deliberately striking civilians and civilian infrastructure," it said on Telegram.