CASA GRANDE — Four people, including two children, suffered serious injuries after two vehicles collided at an intersection just outside the Casa Grande city limits Monday afternoon.

Emergency personnel respond to a T-bone collision about 3:30 p.m. at the corner of Peters and Chuichu roads.

The occupants of a silver Nissan Rogue, a woman in her 50s and two girls 9 and 15 years old were taken to Banner Desert Medical Center in Mesa.

The woman and 9-year-old were flown by helicopter from the scene, while the 15-year-old was transported by ambulance, officials said.

The male driver of a black Jeep was taken to Banner Casa Grande Medical Center.

The extent of their injuries was not available.

The Pinal County Sheriff’s Office is investigating the incident.