It happened around 3:30 a.m. along the feeder road at Fountain View.
A BMW was northbound on the Southwest Freeway feeder road when it collided with a Nissan that was on Fountain View, according to Houston police.
The impact of the crash caused the Nissan to roll over, which was occupied by a man and his 5-year-old, who was restrained in a child safety seat in the back, police said.
Both the father and the child were transported to a hospital, where the 5-year-old was pronounced dead. The father's condition wasn't immediately known, but he was expected to survive, according to officers on the scene.
Witnesses told authorities they stopped the driver of the BMW from taking off on foot after the crash, according to authorities. The BMW driver appeared to be intoxicated, police said. Charges are pending against the driver.