Two Cobb County students were seriously injured when their car smashed into the front of a school bus Wednesday afternoon.

The driver of the bus was also injured in the crash on Due West Road, Cobb police spokeswoman Officer Sydney Melton said. No children were on the bus when the vehicles collided just before 4 p.m.

According to investigators, Stephen Randall, 17, was headed east in a Mazda sedan when he crossed over the double yellow line near Antioch Road, hitting the bus head-on. A 15-year-old was in the car with him.

The brothers are students at Harrison High School, according to a Cobb school district spokeswoman.

The bus driver, identified by police as Robin Blackstone, was the only person on board at the time. Blackstone was taken to WellStar Kennestone Hospital with injuries.

RELATED: 3 injured in crash involving school bus in Cobb; no students aboard

Randall and his passenger both suffered serious injuries, according to police. He was taken in an ambulance to Kennestone, while the 15-year-old was flown to Children’s Healthcare of Atlanta at Egleston Hospital.

The conditions of the three victims were not known Thursday morning.

Roadways in the area were blocked for much of the evening commute Wednesday while police responded to the crash scene, which is about three miles from Harrison and East Paulding high schools.

The wreck is under investigation. Anyone with information is asked to call the Cobb County Police Department at 770-499-3987.

In other news: 

Police are at the scene at the motel on Bay Circle in Norcross.