MINNEAPOLIS (WCCO) — A man is dead after being buried underground when the sides of a trench in a construction area caved in Monday, according to the Blue Earth County Sheriff’s Department.

The sheriff’s department responded to a construction accident in Lincoln, Minn., just before 3 p.m. Monday. The accident occurred just southwest of the intersection of County Road 30 and 171st Street.

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A 28-year-old man who had been working in the trench was buried underground when the sides caved in. Rescue attempts were hindered due to the instability of the area.

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The man’s body was recovered around 8:15 p.m., the sheriff’s department said. The victim’s identity has not been released.

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The construction project involved connecting two separate drainage ditches via a buried drain pipe. Vortex Drain and Tile, of Grand Forks, N.D., was the company involved.