VERDEL, Neb. (AP) — Four construction workers in northeast Nebraska died in a collapsed trench after one of them fell in and his co-workers tried to rescue him, officials said Friday.

The four men were working on the drainage trench near Verdel on Friday morning when part of it collapsed, the Knox County Sheriff's office said in a news release.

Travis Lunn, 24, of O'Neill, fell into the collapsing trench, officials said. The three others tried to rescue him but also became trapped in the dirt.