Reports say the accident occured at around 8:30am yesterday on Maracas Royal Road near Freeman Street.
Shereena Ali and her children were rushed to hospital after the car they were travelling slammed into a concrete wall.
Newscenter 5 understands the car was driven by a close male relative who reportedly fled the scene after the crash.
Witnesses say after exiting the vehcile the man kept loudly threating the family.
The mother and children are now said to be in serious condition
The children are aged of 5, 7 and 9.
Police are investigating.