A 67-year-old woman was struck and critically injured by a truck making a left turn from Sixth Avenue into W. 15th Street in Chelsea Saturday night.

The driver remained at the scene and cooperated with cops.

He was visibly shocked. “I was driving,’’ he told a Post reporter. Then his voice trailed off as he said, “I can’t. I just . . .’’

The name of the woman was withheld pending family notification. She was taken to an area hospital, cops said.

The accident took place around 10:20 p.m.