Rising impairments in its offshore drilling business hit Fred Olsen company Bonheur as it slipped to a third quarter loss.

A NOK 503m ($60.9m) charge was booked against its offshore business in the quarter, up from NOK 257m a year ago.

It came in a period in which Bonheur recorded a loss of NOK 251m, compared with a NOK 70m profit in the same quarter 12 months ago.