Nine people were hurt in a collision on the Kennedy Expressway Sunday in Norwood Park.

About 12:29 a.m., a semitruck and five other vehicles were involved in a crash in the southbound lanes at I-90 and Canfield Avenue, Illinois State police said.

Two 23-year-old women were taken to Lutheran General Hospital with life-threatening injuries, state police and the Chicago Fire Department said. Three men, ages 25, 24 and 58, were taken to the same hospital in fair-to-serious condition.

Two women, ages 63 and 38, went to Resurrection Medical Center along with a 66-year-old man, the fire department said. A 32-year-old man was taken to Community First Medical Center.

All inbound lanes were closed as authorities investigated the cause of the crash but were reopened about seven hours later, state police said.