Series of blasts heard in Ukraine's capital Kyiv

A series of blasts were heard in the Ukrainian capital, Kyiv, on Monday morning, according to Reuters witnesses in the city.

Russia has stepped up missile strikes on Ukraine in recent weeks after blaming Kyiv for the explosion which damaged the Crimea bridge.

Russia has stepped up missile attacks in recent weeks after blaming Ukraine for the explosion which damaged the Crimea bridge.

Smoke could be seen rising above Kyiv after about 10 explosions, Reuters reported.

Ihor Terekhov, the mayor of Kharkiv, said the city has been struck by two missiles which targeted "a critical infrastructure facility".