UPDATE - Wednesday - 8/21/2013, 12:11 p.m. ET
Fairfax County police have identified the man who died at the construction site as Juan Francisco Cerna Alfaro, 36, of Falls Church, Va.
EARLIER - Tuesday - 8/20/2013, 11:48 a.m. ET
McLEAN, Va. (AP) -- Police and federal regulators are investigating a man's death at a residential construction site in McLean.
Fairfax County Police spokesman Bud Walker said police were called to a home Tuesday morning on Kinglet Court in McLean.
Officers and fire crews arrived to find an adult male dead in a 15- foot trench next to a home on the street.
Walker says the investigation is in its early stages, but it appears that the man and several co-workers were digging the trench when he fell in, causing dirt to collapse around him.
Police and the Occupational Safety and Health Administration are investigating the death.
Police did not identify the victim Tuesday.
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