The incident took place at Sawla in the Savannah Region killing two and leaving the other two in critical conditions.
The deceased children, a boy and a girl.
The are receiving treatment at the Bole District Government Hospital.
Accident
One of the deceased children has been identified as Ernestica Dari, daughter of Donald Dari Saditey, a former Member of Parliament (MP) for Sawla-Tuna Kalba constituency.
The Sawla-Tuna-Kalba District Police Commander, Assistant Superintendent of Police (ASP), De-Graft Amaa Adjei, said the car with registration number UW 105-13 run into the four children - three boys and a girl, killing two on the spot.
According to him, the driver is in police custody assisting investigations.