DALLAS -A construction firm whose top executive was implicated in a widespread federal corruption investigation has ceased work on three bond-funded projects in El Paso County, officials said.

Steven Sambrano, owner of Sambrano Corp., also known as SamCorp., pleaded not guilty to bribery and fraud charges in the Southern District of Texas in McAllen. Also pleading not guilty was Ramiro Guzman, a consultant for SamCorp., according to federal documents.

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