WEST ALLIS, Wis. — Police in the Milwaukee suburb of West Allis say a 33-year-old man was fatally stabbed in a fight.

Officers were called about the stabbing just before 2 a.m. Sunday. Despite lifesaving efforts by police and firefighters, the man died.

Investigators say a fight between two groups led to the stabbing. Suspects left before police arrived, so no one has been arrested.

The victim was from Onalaska. Authorities have not released his name.

Police say the stabbing appears to be an isolated incident and there is no danger to the public.