1 killed, 4 critically injured in rollover crash on 405 Freeway off-ramp in West Los Angeles

WEST LOS ANGELES (KABC) -- One person was killed and four others were critically injured in a violent crash Wednesday morning on an off-ramp from the southbound 405 Freeway in West Los Angeles, authorities said.

The rollover collision, involving an overturned SUV, occurred shortly before 4 a.m. at Olympic Boulevard, according to a California Highway Patrol incident log. A Sigalert was issued and the off-ramp was expected to remain closed until about 6 a.m.

The identity of the deceased person was not immediately known.

The cause of the crash is under investigation.