Air raid alerts have been declared in all of Ukraine this morning as officials warned of potential Russian missile strikes, urging residents to take shelter.

“There is a big threat of the missile attack. I want to stress again - do not ignore the air alert sirens,” said Serhiy Popko, head of Kyiv city military administration.

Ukraine’s presidential adviser Anton Gerashchenko also waned of “threats of a massive Russian rocket attack” and urged people to stay in shelters.