Milwaukee police say four people have died in a shooting outside a house party.

Police spokeswoman Anne E. Schwartz says two women, ages 23 and 27, and two men, ages 24 and 28, were killed in the street outside the house at about 2:30 a.m. Friday. Two people suffered injuries that were not believed to be life-threatening.

She says police have no suspect in custody. Officers are interviewing witnesses to try to determine what happened.