The Liebherr LG1550 was moving from the quayside at the Oilfield support Base in Invergordon following a routine lifting operation last week when it fell over.

No-one was injured in the incident but the crane was extensively damaged and the hire company and the manufacturer are now helping the Health & Safety Executive with the investigation to establish the cause.

The Ainscough recovery team expects to remove the crane and clear the site by the end of this week.