| Police received calls at about 7 p.m. (0200 GMT) that a 
				pickup truck had swerved, blocked two lanes and then caught 
				fire, said Washington State Patrol spokesman Cliff Pratt. State 
				troopers rushed to the scene and as one of them and an 
				accompanying transportation official sought to put out the 
				blaze, another trooper approached the driver.
 "Prior to that, 911 calls had this driver with some type of 
				aerosol can spraying the freeway," Pratt said. "And just looking 
				back there, for some reason..., there is a very large green 
				circle right in the middle of the freeway. Have no idea why."
 
 The suspect, a man in his 20s, took out a knife when a state 
				trooper confronted him, Pratt said. A trooper then used a stun 
				gun to try to subdue the man but it "had no effect", Pratt said, 
				and police then shot and wounded him.
 
 The man was taken to Harborview Medical Center in Seattle. His 
				condition was not immediately known.
 
 An investigation was under way, Pratt said. The incident backed 
				up traffic for miles on Interstate 5, the main interstate 
				highway running along the U.S. West Coast.
 
 (Reporting by Eric M. Johnson in Seattle, editing by Mark 
				Heinrich)
 
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