A 27-year-old man was killed and 24 other people were shot after gunfire erupted early Sunday morning in Akron, Ohio, during what a police official said was a big birthday party.

Officers responded to 911 calls shortly after midnight, reporting shots fired and multiple victims struck in the area of Kelly Ave. and 8th Ave., according to a statement from the city’s mayor and police chief.

The shooting took place during a “large birthday party” that earlier in the night had more than 200 people in attendance, Akron Police Chief Brian Harding said in a Sunday evening news conference.

In the shooting’s aftermath, authorities found the scene “littered” with spent shell casings that stretched down a whole block, the police chief said.