Three women were killed in a college campus shooting in Louisiana on Friday morning, including one who was believed to have shot the two others, local police said.

Police found the bodies of three nursing students in a second-floor classroom at Louisiana Technical College in the state's capital, Baton Rouge.

"It appears that one of the deceased was the actual shooter and she shot two other woman inside the classroom before turning the gun on herself," Sergeant Don Kelly with the Baton Rouge police, told reporters at the scene of the shooting.

No other students were involved or injured, Kelly said.