KENMORE, Wash. - A woman was killed and seven others were injured when a water supply truck collided with a front-loader, then crashed into several pedestrians Tuesday afternoon in Kenmore .

The crash occurred just before 4 p.m. at the intersection of SR-522/Bothell Way and 73rd Avenue Northeast.

King County Sheriff spokesman John Urquhart says three people were critically injured, including the driver of the truck. Four others have lesser injuries.

Witness Brian Stambuk said he was behind the front-loader at the traffic light. When the light turned green the front-loader entered the intersection to turn left and was struck by a water supply truck, he said.

The truck then careened onto the sidewalk and struck several pedestrians who had just gotten off a bus before smashing into the traffic light pole.

Stambuk was one of the first people to rush over, trying to help the injured.

"It was quiet, just like anybody else, just crossing the street, and then next thing you know... Just smash, boom, bam, that was it," he said of the accident.

He said that he counted seven people hurt, including a woman who was killed when she was pinned between the truck and the light pole.

"There wasn't anything you could do for that lady," Stambuk said. "It was like somebody strapped a bomb to her... She was in pieces."

One of the injured pedestrians spoke with KOMO 4 News from Northwest Hospital, where she is recovering from a broken knee.

She says she had just got off the bus and the last thing she remembers is the truck coming toward her. She thinks a piece of the truck, possibly a fender, hit her, throwing her 20 feet.

"I was in shock because I don't remember being hit or being thrown," Rebecca Cook said. "All I remember is getting up and realizing, you know, moving very slowly to see what parts I was able to move and what parts I wasn't able to move."

She says she saw the woman who was killed, a man pinned under the truck, and woman in severe pain who could not move her pelvis.

Witness Peter Mahler says he was nearly one of the victims.

"If that tractor was 2 minutes earlier, that truck would have bounced right into me," he said. "I am so lucky to be alive, so I'm so upset... So upset about all of these people... They had no idea.

"It was like being in a war. I just couldn't believe how quick everything happened."

Three of the most seriously injured were taken to Harborview Medical Center, where spokeswoman Susan Gregg-Hanson said a 33-year-old man, 20-year-old man (the driver of the truck) and a 58-year-old woman were stable and none had life-threatening injuries.

Two others were taken to Northwest Hospital and the rest to Evergreen Hospital. The driver of the front-loader was not injured.

Bothell Way was shut down for most of Tuesday evening before reopening around 9 o'clock.

The name of the woman who was killed has not been released.