EDITOR'S NOTE: An earlier version of this story referred to the location of the explosion as a "refinery." On Tuesday, Oct. 10, The Pecos Fire Department clarified that the explosion happened in a gas plant.

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Two men from Starr County died due to an explosion at a gas plant, according to the Pecos Police Department.

Pecos police officers responded to an explosion at a work site at 631 W I-20 Saturday at around 10:14 a.m.

Two men from Rio Grande City — identified as 57-year-old Reynaldo Garcia and Angel Alaffa, 30 — died from the explosion, according to a news release.

The six other employees at the scene refused medical treatment, the release added.

The cause of the explosion remains under investigation.