The U.S. Coast Guard is responding to a fuel barge that got stuck in the mud along the Naknek River on Tuesday.

Personnel aboard the barge reported the incident to the Coast Guard around noon on Tuesday, a release from the Guard said Wednesday. The personnel said the deck of the barge had a cracked check valve.

Coast Guard Sector Anchorage diverted responders working in the region to assess the situation. According to the release, the barge settled in the mud and showed signs of structural stress while offloading petroleum on the river.

"This barge did not run aground, but became stuck in the mud during low tide yesterday as it was offloading product," said Lt. James Nunez, incident management division chief for Coast Guard Sector Anchorage in the release. "Our job is to ensure the potential for pollution in this situation is mitigated."

The Coast Guard says product is now being offloaded from the barge; approximately 50,330 gallons of gasoline and 95,410 gallons of diesel remain on board.

Cleanup professionals, along with the Coast Guard, are standing by in the event that fuel enters the water. The Guard says no pollution has been observed and no injuries reported.

"We will continue to stand by on site until the product is offloaded and we are satisfied that there is no longer a threat," Nunez said in the release. "Protecting the environment is our top priority."

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