The Coast Guard responded Wednesday to a fuel barge that settled in the mud and began to show signs of structural stress while offloading petroleum product on the Naknek River in Naknek, Alaska.

No pollution has been observed and no one has been injured. Product is currently being offloaded from the barge, and approximately 50,330 gals. of gasoline and 95,410 gals. of diesel remained onboard Wednesday afternoon.

The Coast Guard and contracted cleanup professionals are standing by on site in the event that any fuel enters the water.

Personnel aboard the Crowley BC-152 barge reported to the Coast Guard at approximately noon Tuesday that the barge had settled in the mud, and that the deck of the barge was showing signs of stress, including a cracked check valve.

Coast Guard Sector Anchorage immediately diverted Marine Safety Task Force responders working in the region to assess the situation.

"This barge did not run aground but became stuck in the mud during low tide yesterday as it was offloading product," Lt. James Nunez, incident management division chief for Coast Guard Sector Anchorage, said in a statement. "Our job is to ensure the potential for pollution in this situation is mitigated. We will continue to stand by on site until the product is offloaded and we are satisfied that there is no longer a threat. Protecting the environment is our top priority."

The 150'x48'9'6" BC-152 has a capacity of 10,000 bbls. in six tanks. The barge was built in 1967.