Emergencies Ministry members work at the site of a collision between a passenger train and a suburban train in Moscow, Russia April 9, 2017. [Photo/Agencies]

MOSCOW - Two trains collided Saturday night in western Moscow, injuring some 50 people.

According to Russian Railways (RZD) website, a passenger train heading from Moscow to Belarus collided with another train Saturday at 10:16 p.m. local time (2016 GMT) when it made an emergency brake to avoid hitting pedestrians. The two trains derailed and left some 50 people wounded.

Russian Emergency Situations Minister Vladimir Puchkov told local media that 12 people were hospitalized, six of them in grave condition.

Over 200 people and 70 pieces of equipment are involved in the rescue operation.