CALISTOGA -- A man was fatally shot in Calistoga early Monday, according to a dispatcher with the Calistoga Police Department.

At about 1:30 a.m., Calistoga police officers responded to reports of shots fired on Oak Street, the dispatcher said.

Arriving officers found a man who had been fatally shot, the dispatcher said.

No arrests have been made and no suspect information was immediately available, according to the dispatcher, who said Calistoga police are working with the Napa County Major Crimes Task Force in the investigation into the shooting.