OMAHA, Neb. (AP) — Omaha’s police chief is pleading for anyone with information about an early-morning shooting Saturday that left three dead and five injured to contact investigators.

Chief Todd Schmaderer (SHMAH-der) says as many as 50 people were in and around the small northeast Omaha home when shots were fired “by multiple shooters” around 2 a.m. No arrests have been made, and police say they are confident the shootings were gang-related.

Schmaderer says vast majority of people at the scene refused to help police. He says he understands witnesses’ fear but pleaded for them to come forward.

Schmaderer says police can protect the identity of witnesses who come forward and the information they provide.