What is expected to happen? days after his arrest warrant was issued, Putin makes the unexpected decision

Russian state media reports that President Vladimir Putin has made a surprise visit to Mariupol, a Ukrainian port city occupied by Russian forces.

An official video shows Mr Putin driving a car through the streets at night, then visiting a concert hall.

This would be Putin's first visit to a newly occupied Ukrainian territory.

The Tass news agency says he went there by helicopter and met some local residents.

In the video, a Russian official is heard explaining to Putin how the city is being rebuilt.

Mariupol has been under Russian occupation for more than 10 months after it was destroyed in one of the longest and bloodiest battles of the conflict.

Reports of the visit come a year after Moscow launched an airstrike on a theater in Mariupol where hundreds of civilians were sheltering. The building collapsed and at least 300 people are believed to have died there.

Ukraine and human rights groups say the attack amounted to a war crime.

It is among the incidents for which Putin and his regime can be held legally responsible, the United Nations has said.

The International Criminal Court said on Friday it had issued an arrest warrant for Putin for alleged war crimes that include the illegal deportation of Ukrainian children to Russia. This means he can now be arrested if he offends in any of the court's 123 member states.

On Saturday, Putin made an unannounced visit to Crimea to mark the ninth anniversary of Russia's annexation of the territory from Ukraine.

He visited a new Russian art school, a children's summer camp and future cultural projects such as the New Russia museum and the Museum of Christianity, Russian state media reported.