Texas City officials are investigating what caused a leak of crude oil at a Marathon Petroleum refinery on Wednesday morning.

A video shows a tank on the company’s Galveston Bay refinery leaking crude oil from a pipe on the side of the tank. According to a Marathon Petroleum spokesperson, the spill was contained within the refinery.

Jamal T. Kheiry, the spokesperson, said the company has deployed air monitoring equipment but “there is no indication of risk to the community”.

He continued: “Cleanup is under way, and regulatory notifications have been made.”

Loop 197 from 4th Avenue South to FM 519 is closed to non-essential traffic due to the response to the spill.

The Marathon Galveston Bay Refinery has a refining capacity of 593,000 barrels of oil per day.

Earlier this year, Reuters reported that Marathon Petroleum Corporation cut its production by about a third following a key compressor outage. It is, however, the largest US refiner by capacity and the Galveston Bay Refinery is the second-largest in the US.

At the time of reporting, no injuries have been reported and the cause of the spill is being investigated.