After a hose popped off a nitrogen tank and then reset itself, a HazMat team did not find any residue after the leak Monday morning in a building near downtown Oklahoma City, OK, fire officials said.
The spill was reported shortly before 7 a.m. at 840 Research Parkway.
Firefighters said the HazMat team was checking on a liquid nitrogen release. The building ended up evacuated, but after 30 minutes people were allowed to return to the building.
A hose popped off a tank but reset itself as a safety measure. No residue was found by fire officials.
There were no injuries in the incident.