Two suspected Albanian gunmen who seized a Greek passenger bus Wednesday have freed their last six hostages and surrendered to police.
None of the hostages was hurt.
It is unclear what prompted the gunmen to give up just after midnight. They had taken over the bus early Wednesday, and threatened to blow it up unless they were given one-million dollars and a flight to Russia.
The bus was hijacked on a highway between the Greek capital Athens and the city of Marathon. The gunmen earlier freed 17 hostages, while three others, including the driver, managed to escape.
Police praised the driver for taking the keys, immobilizing the vehicle.
Information for this report is provided by AP and Reuters.