A 4-month-old boy died and two other young children were injured when their mother, who is suspected of driving under the influence, crashed head-on into an SUV in North Hills late Monday night, police said.

The crash occurred about 11:45 p.m. when the mother drove her white SUV into oncoming traffic in the 15200 block of Nordhoff Street, Los Angeles Police Department spokesperson Fuentes said.

Her vehicle, which was traveling at a high rate of speed, collided with a black SUV and left badly damaged, Fuentes said.

At least two parked vehicles were also damaged in the crash.

The mother had to be extricated and taken to a local hospital, Fuentes said. Her three children were also taken to area hospitals for treatment.

A 4-month-old boy was initially listed in critical condition before succumbing to his injuries, according to an official with LAPD’s Valley Traffic Division.

The child’s twin had moderate injuries. A 2- to 3-year-old toddler was also injured and suffered head lacerations. They are expected to survive.

None of the children had been properly restrained in the vehicle, according to investigators.

The mother and the driver of the black SUV received minor injuries in the crash and were transported to area hospitals.

The crash is still under investigation, but officials believe the mother was impaired. “She was later determined to be under the influence,” Fuentes said.

Authorities have not released the name of the woman, who is expected to be booked, according to LAPD.