Federal agents on Saturday boarded a vessel managed by the same company as a cargo ship that caused the deadly Francis Scott Key Bridge collapse, the FBI confirmed.

In statements, spokespeople for the FBI and the U.S. Attorney’s Office in Maryland confirmed that authorities boarded the Maersk Saltoro. The ship is managed by Synergy Marine Group.

“The Federal Bureau of Investigation, U.S. Environmental Protection Agency’s Criminal Investigation Division and Coast Guard Investigative Services are present aboard the Maersk Saltoro conducting court authorized law enforcement activity,” statements from both the FBI and U.S. Attorney’s Office said.

Authorities did not offer specifics. The Washington Post first reported on federal authorities boarding the ship.

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In a lawsuit Wednesday, the U.S. Justice Department alleged that Dali owner Grace Ocean Private Ltd. and manager Synergy Marine Group, both of Singapore, recklessly cut corners and ignored known electrical problems on the vessel that had a power outage moments before it crashed into a support column on the Key Bridge in March.

Cargo chain turnbuckle, welded to angle iron, and wedged between the No. 1 step-down transformer (left) and a steel beam (right). (Handout)

The Justice Department alleges that mechanical and electrical systems on the massive ship had been “jury-rigged” and improperly maintained, culminating in a power outage moments before it crashed into the bridge. Six construction workers were killed when the bridge toppled into the water.

The collapse also snarled commercial shipping traffic through the Port of Baltimore for months before the channel was fully reopened in June.

The ship was leaving Baltimore for Sri Lanka when its steering failed because of the power loss.

The Justice Department is seeking to recover more than $100 million the government spent to clear the underwater debris and reopen the city’s port.

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The companies filed a court petition days after the collapse seeking to limit their legal liability in what could become the most expensive marine casualty case in history. Justice Department officials said there is no legal support for that bid to limit liability and pledged to contest it vigorously.

In its lawsuit, the Justice Department argued that vessel owners and operators need to be “deterred from engaging in such reckless and exceedingly harmful behavior.”

A worker (bottom right) inspects shipping containers on the Dali on April 25. (Ulysses Muñoz/The Baltimore Banner)

That includes Grace Ocean and Synergy themselves, because the Dali has a “sister ship,” authorities wrote.

The two companies “need to be deterred because they continue to operate their vessels, including a sister ship to the Dali, in U.S. waters and benefit economically from those activities,” the lawsuit says.

Darrell Wilson, a Grace Ocean spokesperson, confirmed that the FBI and Coast Guard boarded the Maersk Saltoro in the Port of Baltimore on Saturday morning.

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Wilson has previously said the owner and manager “look forward to our day in court to set the record straight” about the Justice Department’s lawsuit.

The Dali, which was stuck amid the wreckage of the collapse for months before it could be extricated and refloated, departed Norfolk, Virginia, on Thursday afternoon en route to China on its first international voyage since the March 26 disaster.

Justice Department officials refused to answer questions Wednesday about whether a criminal investigation into the bridge collapse remains ongoing. FBI agents boarded the Dali in April.