MILWAUKEE (CBS 58) -- Milwaukee police are investigating a serious hit and run accident that happened around 3:47 a.m. near Water and Brady Saturday, Oct. 3.

Police say a vehicle struck a several pedestrian as they were crossing the street and fled the scene.

A 23-year-old man sustained serious injuries and was transported to a local hospital. He is in critical condition.

Two 18-year-old boys and an 18-year-old woman sustained non-life threatening injuries. They were treated at a local hospital.

The circumstances leading up the accident are under investigation. There are no known suspects.

Police say the car is described as a dark colored 4-door vehicle. It is possibly a Chrysler 300.

Anyone with any information is asked to contact Milwaukee Police at (414) 935-7360 or Crime Stoppers at (414) 224-TIPS or P3 Tips App.