Officials responding to bus rollover with more than 40 people involved near Mustang Ridge

BASTROP COUNTY, Texas (KXAN) -- Officials are responding to a bus rollover with more than 40 patients involved in Bastrop County near Mustang Ridge, Austin-Travis County EMS said on social media Friday.

Around 2:17 p.m., ATCEMS and other first responders in Bastrop County responded to 2751 W. SH 21. That is near Caldwell Road, medics said.

A spokesperson for Bastrop Independent School District told KXAN it was not a school bus with the district.

Shortly before 3:30 p.m., medics said two Travis County STARflight helicopters arrived on the scene to transport four patients. Additionally, two patients were taken to St. David's South Austin Medical Center by ATCEMS. Other patients were transported by other agencies as well, medics said.

Drivers should expect road closures in the area as first responders work at the scene.

This is a developing story.