New York-listed Navios Maritime Acquisition is negotiating a sale and leaseback contract to refinance four product tankers.

The company said it has signed an indicative term sheet for a deal worth $76.7m to pay down $54m of debt on the vessels, which it did not name.

The leases and repayments will run for periods ranging from four to seven years, in consecutive quarterly instalments of up to $1.9m.