A pedestrian was seriously injured Friday afternoon in a hit-and-run collision in Wyandanch, police said.

A Suffolk County police spokesman said a man was walking in the southbound lane of Straight Path, near Lincoln Avenue, at 3:55 p.m. when he was struck. The spokesman said the driver of the vehicle then sped away.

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The man was taken to Good Samaritan Hospital Medical Center in West Islip with serious injuries.

First Squad detectives are investigating.