Northbound Interstate 205 was closed at Northeast Airport Way in Portland on Friday after a single-vehicle crash left a driver with injuries believed to be life-threatening, police said. Firefighters and medical crews were dispatched at 12:33 p.m. to reports of a vehicle fire. They found a car on its side with a person trapped inside, and firefighters freed the driver, who was taken to a hospital. The Portland Police Bureau’s Traffic Division Major Crash Team is investigating. Authorities had not announced a cause for the crash or when the highway would reopen.