Authorities in Illinois were searching Sunday for two suspects who are believed to have opened fire on a Halloween party, killing two people and injuring more than a dozen, writes NBCNEWS.

The shooting occurred early Sunday morning at a house party in Joliet, southwest of Chicago, at an event attended by an estimated 200 people, the Will County Sheriff’s Office said in a statement.

Gunfire erupted near a DJ booth in the backyard, the sheriff’s office said.

Citing witnesses, the sheriff’s office said one of the men - described as a Hispanic male wearing a red hoodie - fired from an elevated porch overlooking the crowd.

The second shooter was described as a light-skinned man wearing a ski mask and yellow hoodie.

Two people were pronounced dead at the scene. Neither were identified. Four others were taken to local hospitals, the statement said.

Additional details about the incident were not immediately available.