Leaking gas from a semi-tanker forced the closure of the eastbound I-80 rest stop near Brady Monday.

The gas was butane. The leak was slow and small, according to Nebraska State Trooper Carolyn O’Brien.

The tanker was parked in the rest area when the Nebraska State Patrol arrived around 12:20 p.m. The rest area remained closed as of 2:30 p.m.

The North Platte Fire Department responded.

No one was injured, O’Brien said. The fire department determined the leak posed no threats to I-80 motorists, thanks in part to a north wind that blew the gas away from the highway.

The truck belongs to Groendyke Transport, headquartered in Enid, Okla.

Another Groendyke truck was enroute from Holdrege to offload the tanker, O’Brien said at 2:30 p.m. The rest area will remain closed until that process is complete.

Butane is highly flammable. It is used in fuels, as a refrigerant and is an ingredient in making synthetic rubber.

The inhalation of butane can cause euphoria, drowsiness and circulatory problems if inhaled in sufficient quantities. In extreme cases, the gas can be deadly, according to the handbook, Inhalant Abuse, published by the Haworth Medical Press.