The incident happened at about 4 o'clock yesterday afternoon
Gardai in Westmeath are continuing to investigate a car fire which claimed the lives of two children yesterday.
It happened near the town of Multyfarnham at about 4 o'clock in the afternoon.
An infant boy was removed from the scene by ambulance to Midland Regional Hospital, Mullingar, where he was pronounced dead.
The remains of a girl were discovered inside the car at the scene. Her body has been removed to Midland Regional Hospital, Tullamore.
The children's mother suffered critical injuries from the blaze and was rushed by helicopter to a hospital in Dublin.
The State Pathologist, Dr Sally Ann Collis, will carry out post-mortems on their bodies in the Midland Regional Hospital, Tullamore today.
The results will determine the course of the Garda investigation into the fire.
Gardaí are appealing to anyone with information to contact Gardaí at Mullingar.