President Zelensky: Kharkiv attack was a war crime

Ukraine's president has described the bombardment of Kharkiv, which killed dozens of civilians, as a war crime.

Volodymyr Zelensky said there were eyewitness accounts of civilians being deliberately targeted during Monday's attack on Ukraine's second largest city, Qazet.az reports.

Rights groups also said war crimes may have occurred during Russia's invasion.

The International Criminal Court's is looking to launch its own investigation into the allegations.

There is "reasonable basis" to believe war crimes or crimes against humanity have been committed in Ukraine, chief prosecutor Karim Khan said late Monday.

Air raid sirens sounded again in the capital, Kyiv, as satellite images showed a 64km Russian military convoy advancing from the north of the city.