Update Friday, August 2: The worker found in the trench box Thursday has passed away, according to Suffolk Fire & Rescue. His name will not be released to respect the family's privacy.
Suffolk Fire and Rescue found a man unconscious in a trench box Thursday afternoon around 1:30 p.m.
The man, who is also a construction worker, was reported to be 15 feet deep in the trench box near Second Ave and Pitchkettle Rd. Various contractors were repairing utilities in the road-way when firefighters found him unconscious, according to SFR.
Advanced life support was performed on scene and the man was removed and transported to a local hospital as they continued care, firefighters say.
He is listed as being in life-threatening condition and Suffolk Police are investigating the incident.
Suffolk Fire and Rescue have not released his identity at this time.
News 3 will update this article as more information becomes available