Vladimir Putin, Russia’s leader. The EU’s foreign policy chief, Kaja Kallas, said there was ‘no doubt that Putin has committed the crime of aggression’. Photograph: Gavriil Grigorov/Reuters

In a statement, the Russian Foreign Ministry said that "in response to the Ukrainian Armed Forces' terrorist acts against the civilian population and ​civilian infrastructure of our country, the Armed Forces of ​the Russian Federation are continuing to systematically carry ⁠out targeted strikes on military facilities in Kyiv and other ​Ukrainian cities".

"The Russian Ministry of Foreign Affairs once again warns ​foreign nationals, including diplomatic mission staff, against staying in Ukraine or travelling to its territory.

"Responsibility for any adverse consequences lies entirely with those who ​ignore this warning," the ministry said.

Russia has recently escalated ​strikes on infrastructure in the Ukrainian capital, hitting a bridge across the ‌Dnipro ⁠river in an air attack on Saturday. The intensifying campaign has upended life for the capital's 3 million residents ahead of the bitter winter months.

Russian President Vladimir Putin said this week that ​Ukraine was ​paying the price ⁠for its own attacks on Russia and would continue to do so as Moscow's forces ​systematically strike different targets there.

Both Russia and Ukraine ​have ⁠stepped up attacks on the other side's grain vessels in the Black Sea in recent months, while Russian oil refineries and ⁠other ​enterprises continue to come under Ukrainian ​shelling and Ukrainian drones kill civilians in Russian border regions.

Both sides deny targeting ​civilians or civilian infrastructure.