SAN FRANCISCO — A man died in a stabbing outside a San Francisco BART station early Wednesday, police and authorities said.

Authorities have not yet released any other information about the man or why he was killed.

The incident, which occurred in front of the Embarcadero Station on Market Street, shut down the system for about 40 minutes during the morning commute, officials said.

San Francisco police said in a statement that they responded around 5:50 a.m. to reports of a person bleeding outside the station. Officers arrived to find a male with unspecified injuries and bleeding. Police said they and paramedics assisted, but the man died at the scene.