The coroner’s office today released the name of a 12-year-old boy who was killed in a single-vehicle crash into a light pole in Wilmington, as investigators worked to determine if speed was a factor.

Another child, a 10-year-old boy, was critically injured in the crash that killed Devyn Em of Long Beach about 11:10 a.m. Monday in the 200 block of North Quay Avenue, authorities said.

The 19-year-old Long Beach man driving the car was also injured and both he and the 10-year-old boy were hospitalized, according to the Los Angeles Fire Department. The man was initially reported to be in fair to serious condition. Their names were not released.

Em was pronounced dead at the scene. His body remained trapped inside the wreckage hours after the crash, officials said. The driver was westbound on Harry Bridges Boulevard in a 2005 Lexus 250 when he hit a rough patch in the road and lost control, according to Detective Karen Jones of the Los Angeles Police Department’s South Traffic Division, which is investigating the crash.

The Lexus went into a spin, struck and jumped the south curb and then hit the cement post, Jones said. Speed was being investigated as a possible factor in the crash, but there was no evidence the driver was impaired, Jones said. All three victims were related, Jones said, but she was not sure exactly how.