A bicyclist died of head injuries a week after he was struck in a hit-and-run crash in Irving Park on the Northwest Side.

The man was riding a bike about 2:18 a.m. on Oct. 20 at Irving Park Road and Kimball Avenue when he was struck by a vehicle, according to Chicago police.

The bicyclist, 26, told investigators that a black-colored vehicle continued west on Irving Park after the crash, police said.

He complained of back pain and was taken to Illinois Masonic Medical Center, police said.

The man died eight days later at 11:55 a.m. on Oct. 28, the Cook County medical examiner’s office said.

An autopsy released Tuesday found he died of head injuries from a motor vehicle striking a pedestrian, the medical examiner’s office said. His death was ruled accidental.

The man lived several blocks north of the crash site in Pulaski Park.

A police spokesperson said the investigation was suspended due to a lack of leads.