NEW HAVEN, Conn. — Police in Connecticut have charged a school bus driver who they say left two special needs students on a bus.

Authorities say the driver left the two Wilbur Cross High School students on a bus Thursday. Police responded after one of the 17-year-old students called a parent. The students weren’t injured.

New Haven Police Chief Anthony Campbell says the driver told officers she forgot the students were on the bus.

The driver has been charged with risk of injury and reckless endangerment. Police haven’t released the her identity.

New Haven Public Schools COO Will Clark said in a statement that leaving a bus with students on it “is an unacceptable breach of training and protocol.”