Cedar Rapids Police say the motorcyclist involved in Thursday's crash died Sunday afternoon.

Police say the Johnson County Medical Examiner's Office reported to them that 20-year-old Dawson Reed Brown died Sunday afternoon.

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Police say the 20-year-old driver of the motorcycle has life-threatening injuries and was taken to the University of Iowa Hospitals and Clinics.

The 19-year-old driving the SUV didn't require medical transport.

Authorities say preliminary information suggests the motorcyclist was northbound on Edgewood Road and collided with the Suburban SUV that was going southbound on Edgewood Road attempting to turn left onto O Avenue NW.

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Cedar Rapids Police are investigating a crash involving an SUV and a motorcycle.

It happened about 4:30 p.m. Thursday at Edgewood Road NW and O Avenue NW.

Police said they found the motorcycle driver lying in the road suffering from a serious injury. Emergency crews took the motorcycle driver to a hospital.

Witnesses tell KCRG-TV9 the motorcyclist wasn't wearing a helmet.

Police have not yet released the names of those involved in the crash or how it happened.

Officers have taped off part of the intersection while they investigate. O Avenue is closed for the time being, but traffic is flowing on Edgewood Road.

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Cedar Rapids Police are investigating a crash involving an SUV and a motorcycle.

It happened Friday evening at Edgewood Road NW and O Avenue NW.

Police have released few details but said emergency crews took the motorcycle driver to a hospital with unknown injuries.

Witnesses tell KCRG-TV9 the driver's injuries were severe and said the motorcyclist wasn’t wearing a helmet.

Officers have taped off part of the intersection while they investigate. O Avenue is closed for the time being, but traffic is flowing on Edgewood Road.