Two young siblings were airlifted to a Houston hospital while their mother was taken by ambulance to College Station following a rollover Tuesday in Grimes County.

According to the Department of Public Safety, Waller resident Amy Sandoval, 26, was travelling north on FM 362 near Camp Allen at 4:20 p.m. when she drifted off the road.

She steered sharply back onto the highway causing her Ford Explorer to roll several times. A 9-year old boy and his 6-year old brother were both ejected and nearly crushed by the rolling vehicle.

They were taken by LifeFlight helicopter to Memorial Hermann Hospital in Houston. Their conditions were unavailable.

Sandoval was taken to the College Station Medical Center where she is listed in critical condition.

Authorities say none of the victims were wearing seatbelts and in the case of the children were not wearing child restraint seats.