Al Unser Jr. took a record-setting fourth straight victory in the inaugural Molson Indy-Vancouver on Sunday, a race marred by an accident in which one course workers was killed and several injured.

The series point leader dominated the second half of the 97-lap, 165.29-mile event at Pacific Place on the edge of downtown Vancouver, beating Danny Sullivan by 10 seconds.One track worker died of what race officials called "significant head injuries" and two others were hospitalized after they were struck by the car driven by Willy T. Ribbs.

Six track workers were push-starting Ross Bentley's car when the accident occurred on lap 17. As Bentley pulled away, several of the workers darted toward the wall, directly into the path of Ribbs' car.