SANTA MONICA (CBSLA) — A man was stabbed in the chest on the Expo Line in Santa Monica early Saturday.

Authorities said the incident was called in just before 5 a.m. at Fourth Street and Colorado Avenue.

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Passengers ride a train during the opening of the Metro Expo Line extension between Culver City and Santa Monica station in Santa Monica, California on May 20, 2016. (Photo by Frederic J. Brown/AFP/Getty Images)

Neither the victim nor suspect — who are both believed to be transients — were at the scene when officials arrived but they were later located at the 26th Street and Michigan Avenue, according to the Sheriff’s Transit Services Bureau.

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The victim was treated for his injuries and is expected to survive. The suspect confessed and was taken into custody.

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