A U.S.-flagged freighter that spent Memorial Day weekend laborious aground in Lake Superior continues to be caught Tuesday as salvage crews proceed on plans to refloat the vessel.

The 833-foot MV Roger Blough ran aground Friday afternoon on Gros Cap Reef in Whitefish Bay in Lake Superior.

The Coast Guard mentioned Tuesday that the specter of a gas oil spill was minimal and flooding on the vessel remained secure. Boom has been deployed across the stern close to the ship’s gas tanks however strictly as a precautionary measure. No gas is believed to have leaked for the reason that grounding on Friday.

Over the weekend, response crews had been busy taking exterior draft readings of the vessel because the crew of the Roger Blough continued inside soundings of the tanks to make sure flooding remained below management.

All crew members stay on board the vessel and are reported protected with no accidents.

Representatives from the National Transportation Safety Board had been anticipated to reach Tuesday night time to help the Coast Guard in investigating the reason for the grounding.

A 500 yard security zone has been put in place across the vessel.