Firefighters Rescue Worker Who Fell 15 Feet Down a Hole on US Naval Ship Docked in SF

San Francisco firefighters are working to rescue a worker who fell into a confined space on a U.S. naval ship in dry dock in the city's Dogpatch neighborhood.

The adult male victim, who is not a naval employee, was working on the U.S. Naval Ship Guadalupe at a private dry dock facility at 20th and

Third streets when he lost his footing and fell 10 to 15 feet, according to fire department spokesman Jonathan Baxter.

Fire officials first reported the incident shortly before 3:30 p.m.

The man has moderate injuries from his fall but is reported to be conscious and breathing, Baxter said.

Firefighters are conducting a confined space rescue, which means that personnel will be lowered by rope to the victim and then the victim will be raised back out.

Baxter said the space has no windows or ventilation and will require monitoring to make sure it has sufficient air for both the victim and rescuers.

#TR8401 UPDATE RESCUE IN PROGRESS HOISTING VICTIM NOW pic.twitter.com/EOVIpyXbgI — San Francisco Fire (@sffdpio) August 4, 2016

To clarify, this is a confined space and technical rescue on board a ship. it is not a "space ship". https://t.co/wLh1vxriLd — San Francisco Fire (@sffdpio) August 4, 2016

#TR8041 UPDATE ADULT MALE VICTIM CONSCIOUS PREPARING TECHNICAL RESCUE OPERATION pic.twitter.com/zTMlhlAC65 — San Francisco Fire (@sffdpio) August 4, 2016