An elderly driver in the midst of a possible stroke mowed down three pedestrians, leaving an 89-year-old woman dead and two others injured on a Brooklyn sidewalk Wednesday, police and sources said.

The 86-year-old motorist reversed his Chrysler Town and Country SUV and jumped the sidewalk before striking the three pedestrians near Neptune Avenue and W. 6th St. at 12:51 pm in Coney Island, according to cops.

“I saw the man back up and knock them down, and I started screaming,” a horrified witness told Pix 11. 3

“As I came closer, I recognized one of the women. It could’ve been me.”

The 89-year-old woman was rushed to NYU Langone Hospital, but could not be saved.

Two women — a 43-year-old and a 75-year-old — were taken to Maimonides Medical Center in stable condition.

“”They

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