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.

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

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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.