Prosafe‘s accommodation vessel Safe Bristolia is adrift in the North Sea with 33 offshore workers onboard after a towing line snapped.
The semisubmersible vessel is used in the offshore energy industry worldwide, and was being relocated from Cromarty Firth to a shipyard in Gdansk, Poland. It disconnected from towline near the Montrose coast.
Safe Bristolia was originally launched in 1983 as an offshore drilling rig to Sedco 602 design.
Prosafe said it will attempt to reconnect the line if there is an improvement in weather conditions.
The vessel is currently drifting 120 miles east of Montrose after a towline that linked it to a tugboat snapped in high seas.
A spokeswoman told the BBC: "Since the vessel is in open water east of Scotland and the original tow vessel is still in attendance, it is more convenient to wait and Prosafe have secured a second anchor handling vessel that is currently en route to support the recovery operation."
Maritime and Coastguard Agency spokeswoman said that no immediate danger is expected to vessel, shipping or the environment and an action plan is on the way.
Safe Bristolia has a gross tonnage of 13,876t.