Updated at 1:20 p.m.

A female student shot and killed two classmates and then herself this morning in a classroom at Louisiana Technical College’s Baton Rouge campus, United Press International reported.

Police officers responding to a 911 call around 8:30 a.m. found the three already dead. Twenty other people were in the classroom at the time, the police said. The women’s identities have not been released, but the shooter was 23 years old, while the victims were 21 and 26.

In a notice posted on its Web site, the college said a motive for the shootings was not known. The college also said it was cooperating with the police in the investigation. Classes have been canceled for the day, and counselors are being made available to support students, their families, and members of the faculty and staff. —Beckie Supiano