Thirty buses are en route to collect evacuees from Mariupol, says Ukrainian official

LVIV, Ukraine - Thirty buses are en route to the besieged Ukrainian city of Mariupol to collect evacuees via a humanitarian corridor to Ukraine-controlled territory, deputy prime minister Iryna Vereshchuk said on television on Tuesday.

There were signs Russian forces were firing in the direction of a route for humanitarian aid, she added, without providing further details.