St Bees RNLI was called out yesterday afternoon to help investigate a large object off the coast at Parton, near Whitehaven.
Whitehaven Coastguard Rescue Team were first on scene but due to the failing light were unable to identify it.
St Bees RNLI volunteer crew were called at around 3.55pm and were quickly on scene.
With the help of the Coastguard, the lifeboat located the mystery object, which was a large mass of seaweed and wooden debris.
The debris was removed as it could be a hazard to shipping and the lifeboat then returned to the station.
Dick Beddows, St Bees Lifeboat operations manager, said: “We are grateful to the member of the public who did the right thing by dialling 999 and asking for the Coastguard.”
