The Ukrainian Interior Ministry on Monday issued an arrest warrant for dismissed President Viktor Yanukovych and his close allies.

"We have opened a criminal case on the mass murder of civilians. Yanukovych and several other officials are on the wanted list," interim Interior Minister Arsen Avakov said, adding that the ousted president is believed to reside in the Crimean peninsula in the south of the country.

Yanukovych left the capital late Friday to take part in a regional meeting in the city of Kharkov near the Russian border after signing an agreement with the opposition to end the conflict, according to media reports.

On Saturday, the Ukrainian Parliament passed a resolution to dismiss Yanukovych from his post, declaring him constitutionally unable to carry out his duties

The same day, the presidential plane tried to take off from the airport in eastern Ukraine, but was denied permission for lack of proper documents, according to the State Border Service.

So far, more than 80 people have been killed and hundreds of others injured during anti-government protests, which began last November to back the country's European integration and turned violent Tuesday.