Firefighters, police and private company refrigeration technicians worked for about four hours this morning to resolve an ammonia gas leak at a cold storage warehouse in Campbell Industrial Park.

The leak was reported about 4:30 a.m. at Hawaii Logistic Services at 91-315 Hanua St.
Fire Department spokesman Capt. Terry Seelig said firefighters assigned to a hazardous materials team worked with the private refrigeration company technicians to “manipulate some valves” in order to cut off the flow of ammonia to the leak.
But because ammonia remained in the line between the valve and the leak, some of it is continued to escape, Seelig said.
By 8 a.m., firefighters entered the warehouse to determine how much of the leaking gas remained and how much of a problem it posed, Seelig said.
Drivers heading makai on Kalaeloa Boulevard were not allowed to turn right on Malakole Street as a safety precaution, Seelig said.
Police reopened all roads about 8:15 a.m.