Four killed as bus drives into subway underpass in Moscow
Four people have been reported dead after a bus drove into a pedestrian underpass in Moscow.
Russian police said passengers and pedestrians were among those killed in the incident, which injured a further 15.
Footage shows the bus swerving off its course and driving off steps to an underground passageway near Slavyansky Boulevard metro station.
It's unclear what caused the accident.
The bus driver was detained by police.