July 31, 2026 5:23 PM PT

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A man was fatally stabbed on the platform for the Sylmar/San Fernando Metrolink train station Friday afternoon, authorities said.

Los Angeles Police Department officers responded to the reported stabbing at 2:07 p.m. and found the victim bleeding on the ground, where he was pronounced dead, according to a department spokesperson.

Officers established a perimeter and began searching for the suspect, who was described as a man in a reflective vest. One person was detained by officers Friday afternoon, but information was not immediately available on whether that individual had been booked into jail, the spokesperson said.

Homicide detectives are continuing to investigate for a possible motive for the attack. The victim’s identity has not yet been released.

Metrolink service was not affected as the afternoon rush hour began, according to a spokesperson for the commuter rail system.

Trains are continuing to run through the Sylmar/San Fernando station, but passengers are being asked to board and exit through the back two cars to minimize disruption at the still-active crime scene, the spokesperson said.