Authorities in upstate New York say a man went to a coffee shop where his girlfriend works, told her to come outside, doused her in flammable liquid and set her on fire.

Police in Tonawanda say man also set himself on fire Monday afternoon by accident due to his proximity to the 25-year-old woman. His name has not been released.

Both were taken to a hospital with serious and potentially life-threatening injuries.

Officials say they are investigating it as a domestic violence case involving child custody. Police say they expect to charge the 28-year-old man with attempted murder, but charges are still pending.

Tonawanda is just north of Buffalo.