A suspect involved in the murder of a Yonkers teen has been identified.

Last weekend, 14-year-old Ethan Reyes was found fatally stabbed on a train platform in a north Harlem subway station.

Reyes was taken to a nearby hospital, where he was later pronounced dead.

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The Manhattan DA's office has now identified 15-year-old Kelvin Martinez as the person suspected of stabbing. Police say Reyes and the suspect are part of rival gangs.

Investigators say Martinez was cornered by Reyes and a friend, and they started beating him with a broomstick.

Police say it was at that point, Martinez stabbed Reyes in the stomach.

Martinez was taken into custody by police. He is charged with manslaughter in the first degree.