Police say 15 people have been hurt in a shooting at a Miami nightclub and that the youngest victim is 11 years old.

Miami police said gunfire erupted around 1 a.m. Sunday at a club called The Spot. Police spokeswoman Frederica Burden says it's unclear how many shooters there were and what caused the shooting. She also says investigators are going from hospital to hospital interviewing witnesses as they sought more details about the situation.

Authorities say one of the victims is in critical condition, but they had no immediate information on the extent of other injuries or the victims.