STATEN ISLAND, N.Y. -- Investigators believe the worker who was injured at the Bloomfield construction site Wednesday was not electrically shocked, but kicked unconscious by a colleague who mistakenly thought the victim was being electrocuted, according to a Department of Buildings probe.

The co-worker intervened after seeing an arc of electricity from a small panel explosion and kicked the 25-year-old electrician in an attempt to disrupt the flow of electricity, said a DOB spokeswoman.

The electrician then fell, hit his head and was knocked unconscious, she added.

The worker did not suffer any electrical injuries.

The Occupational Safety and Health Administration (OSHA) has also opened an investigation into the incident, said an agency spokesman.

Police initially said the worker was exposed to 500 volts of electricity at the 546 Gulf Ave. site at around 11:13 a.m. Wednesday, and taken to Staten Island University Hospital in Ocean Breeze in critical condition.

The electrician was in stable condition Thursday, police said.

According to Department of Finance records, the site is owned by Staten Island Global Logistics Park Lot 3 LLC.

The Cranbury, N.J.-based Matrix Development Group began work at the 200-acre Bloomfield site in late fall 2016. The site will soon house the Amazon and Ikea facilities.

"Our sincerest appreciation goes out to the responders, and - foremost - our thoughts and well wishes go out to the injured worker," said a Matrix spokesperson in a statement to the Advance.

The spokesperson confirmed the man worked for Hylan Datacom & Electrical, but declined to answer questions regarding the details of the incident until the investigation was completed.