This story has been updated with additional information from D.C. Police and D.C. Fire/EMS.
Three people were killed and one is in serious condition from a high-speed, one-car accident in Southeast D.C. early Saturday morning.
Police say a female driver lost control of her car, a 2007 Mitsubishi Galant, after passing over a speed bump in the 1300 block of Mississippi Avenue, SE.
As the car slid out of control, it went into Oxon Run Park, flipped over, and hit two large trees.
Three of the four occupants were ejected from the car as it overturned and hit the trees, police say.
One male passenger was pronounced dead on the scene. A second male passenger was taken to a local hospital where he he later died.
The driver was also taken to a local hospital where she was admitted in critical condition, but she also died.
The rear passenger was transported to a local hospital where she is currently listed in serious condition.
The accident is under investigation.
The deceased were identified as 32-year-old Tacrava Jenee Martin of Southeast, D.C., 20-year-old Stanley Kevin Lemon of Southeast, D.C. and 19-year-old Jalante Robertson of Southeast, D.C.