Pipe down! - That was the message from North Ayrshire council over a noisy cable laying ship in the Clyde which disrupted people's sleep in Fairlie in the summer.
Residents in Fairlie complained to MSP Kenneth Gibson about the issue which also resulted in letters to the Largs and Millport Weekly News. 
National Grid and ScottishPower Transmission have come together in a joint venture to build the Western Link, a £1 billion project which will help to bring renewable energy from Scotland to homes and businesses in Wales and England.
The Western Link project includes direct current subsea and underground cables including a 385km stretch from Ardneil Bay in Seamill to Leasowe on the Wirral peninsula.
It will provide additional capacity and support the continued grown and expansion of renewable energy,
The current phase of the works involves the transfer of the subsea cable from one vessel to a cable laying vessel whistle berthed at Clydeport terminal.
The first of the cable transfer operations took place in June 2016 for around 10/14 days with the second transfer on 1-15 September. 
However, residents in Fairlie have voiced fears to Mr Gibson about the ongoing noise nuisance as the ship is set to return in December.
In June, Environmental Health received six complaints in relation to noise. 
Monitoring undertaken at night during that time revealed that a rumbling engine noise could be heard inside a complainer's bedrooms.
In correspondence with Mr Gibson, Caitriona McAuley, Head of Service for economic growth at North Ayrshire council, said: "The investigation officers were both of the opinion that this rumbling engine noise could potentially be annoying."
"A frequency analysis undertaken with the property of a Fairlie resident showed a peak at 63 Hertz of 55 db(Z) which could also contribute to a person's perceived level of annoyance to noise."
Environmental Health wrote a letter to Clydeport to advise them of their findings and to minimise any potential noise disturbance to local residents. A response from Clydeport Operations Limited on 23 August was received outlining the noise mitigation measures that would be in place for future operations.
Clydeport had responded that one measure during September was that the cable transfer involved a newer vessel - the Maersk connector carried the cable used to transfer to the cable laying vessel (Giulio Verne).
But this has sparked further complaints were again made regarding the noise, resulting in further monitoring by Environmental Health. 
However, the latest findings showed that the results were within recognised guidelines.
Catriona McAuley said: "As a result of extensive investigation undertaken, formal follow up action cannot be taken due to insufficient evidence regarding the existence of statutory noise from the vessels.
"World Health Organisation guidelines recognise the low frequency noise only slightly above the threshold of audibility can cause considerable disturbance.
"With this in mind, it is the intention of Environmental Health to continue to monitor the noise from Clydeport during future cable transfer operations to ensure the best practicable means are adopted to minimise noise disturbance."