Detectives are looking for whoever stabbed to death a man whose body was discovered near the railroad tracks in Pomona earlier this week.

Police don’t know the motive behind the killing.

Shortly before 8 a.m. Wednesday, patrol officers responded to a call about a stabbing victim in the 2800 block of Pomona Boulevard, Sgt. Blake Jensen said. The man was pronounced dead at the scene. The medical examiner’s office identified him as Armando Salinas, 40, but did not have his city of residence.

Police asked anyone with information about the stabbing to call the Pomona Police Department at 909-620-2085. Anonymous tipsters can call Crime Stoppers at 800-222-8477 or go to lacrimestoppers.org.