Update Monday 9:45 a.m.:
Anchorage police have identified the man killed in the crash as Joe Carlos, 56, of Eagle River.
Police say they are still investigating how the crash happened.
Original story:
A motorcyclist has died of injuries sustained in a fiery collision in Eagle River Saturday night, the Anchorage Police Department said.
A man riding a BMW motorcycle collided with a truck in the 10900 block of Old Glenn Highway at about 5:30 p.m. on Saturday, the APD said Sunday.
The crash happened close to a Glenn Highway exit that feeds into Eagle River's busy downtown commercial district.
"The motorcycle burst into flames on impact and slid across the highway," the APD said in a statement.
Multiple passers-by pulled the driver from the motorcycle and "extinguished the flames on his body," police said.
The motorcyclist was rushed to a hospital in critical condition.
Police said he died Sunday afternoon of his injuries. His name has not been released.
Both lanes of the Old Glenn Highway near Artillery Road remained closed until 3 a.m. as police processed the scene.
The collision was the third fatal motorcycle accident in four days in Southcentral Alaska.
On Wednesday, a man died when he lost control of his motorcycle and crashed into an oncoming car near where Boundary Avenue meets Turpin Street in East Anchorage.
On Thursday, a motorcyclist died in a collision with a pickup truck in a neighborhood in Sterling, on the Kenai Peninsula.