Explosions were heard in the Ukrainian capital Kyiv and air alerts were issued in a number of regions in the country on Monday.
Ukraine said it had downed all the Russian missiles fired on the country on Monday in a second wave of attacks.
"A total of 11 missiles were fired: 'Iskander-M' and 'Iskander-K' from a northerly direction," Ukraine's armed forces chief Valery Zaluzhny said, adding that "all the targets were destroyed by air defenses"
The air attack followed hours after overnight missile and drone strikes and was the 16th on Kyiv this month, Ukraine's defense ministry said.
(With input from AFP)