A grand jury indicted the companies that operated the ship that crashed into the Francis Scott Key Bridge in Baltimore in 2024 – sending it toppling into the Patapsco River and killing six workers – for charges including neglect and conspiracy to defraud the government.

Synergy Marine Group and its entities, as well as employee Radhakrishnan Karthik Nair, were listed as defendants in the indictment unsealed in the U.S. District Court of Maryland on May 12.

The companies were charged with conspiracy to defraud the U.S. government, failure to report a hazardous condition, obstruction and aiding and abetting misconduct or neglect of ship officers resulting in death, among other allegations. Nair was also individually accused of four overlapping charges.

USA TODAY has reached out to a representative for Synergy Marine Group for comment.

The Dali container ship crashed into a pier that supported the central span of the bridge in the early morning hours of March 26, 2024. The bridge plunged into the river below, killing six construction workers and bringing the major shipping artery at the Port of Baltimore to a screeching halt.