A suburban Chicago worker died Thursday after becoming trapped in a vault that filled with water after a line broke.

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An Illinois public works employee died after he was trapped in a flooded water main vault.

Westmont Public Works staff contacted fire and police around 11:45 a.m. to respond to the worker, Matt Heiden, who was trapped in an underground vault that was underwater from a break in a water main, the village of Westmont said in a news release.

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Heiden was recovered around 12:40 p.m. and was found unresponsive, authorities said. Lifesaving measures were attempted and the person was taken to Good Samaritan Hospital in Downers Grove.

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Westmont is about 20 miles west of Chicago.