Keybank National Association is pursuing TransAtlantic Lines Holdings for $7.8m owed for the past three years.
In November 2015, First Niagra, which merged into Keybank a year earlier, extended a $5m term loan and a $4m line of credit to the American diversified shipowner.
As security for the loans, First Niagara was given first preferred ship mortgages on a multipurpose ship, a singledecker, a non-propelled barge and a tugboat, according to court documents filed in US District Court for the District of Connecticut.