Wintermar Offshore Marine has seen its full year losses more than double compared to a year ago as impairments took their toll on the company.

The Jakarta-based shipowner said it lost $22.9m for the 2016 financial year versus the loss of $9.7m seen in the previous 12 months.

Revenue was down almost 11% to $88.1m, which was partially offset by a falling in operating costs of 13.3%