One man was shot in the face and another was severely beaten when a fight erupted early Sunday morning during a birthday party at a downtown Baltimore hotel, police said.

Officers were called to the Sheraton Baltimore City Center Hotel around 3:15 a.m., said Baltimore police spokesman Anthony Guglielmi. Shortly after police arrived, they found an Uzi submachine gun in a room where the party was held.

Police said they have a "person of interest" in custody but did not say who that was. Investigators were still interviewing about a dozen witnesses Sunday morning.

The man who was shot was in serious condition, and the man who was beaten was in critical condition. Both 18-year-olds were taken to the University of Maryland Shock Trauma Center.

The second man was beaten so severely that officers initially reported he had been shot, Guglielmi said.

Another man who had facial lacerations initially had been described as critically injured, though Guglielmi said the wounds turned out to be superficial.

None of the victims' names was released.

A man who answered the telephone at the hotel said he could not comment on the shooting.