A man was hit and killed by a bus Thursday night in Seattle's South Lake Union neighborhood.

The pedestrian was walking near Westlake Avenue and Blanchard Street around 9 p.m. when he was hit by a Sound Transit bus.

A witness saw the man walk into the side of the bus, get knocked down and run over, according to a Sound Transit official.

The bus driver did not know a person had been hit until he was radioed to come back to the scene.

The Seattle Police Department is investigating the incident.