The source of a strange booming noise heard in the Milford Haven area last night (Thursday) remains a mystery.
The noise started at around 10.30pm and lasted for two minutes.
“It was unlike anything I have ever heard,â€ said one resident.
Pembrokeshire County Council confirmed that it received three complaints about the booming noise.
Environment Agency Wales said that they had investigated the incident and had not discovered anything untoward.
Locals speculated that the noise may have come from the Castlemartin Range which is currently conducting night firing exercises.
However a spokesman for the MoD said that the exercises on the range last night were straightforward section attacks with live firing and would not have caused a large booming noise.
Boom explained: It was an absorbent boom, laid across, innit? I’m not placing the boom on anyone in particular…
Boom placed across Milford docks after boat sinks
5:10pm Thursday 2nd February 2012 in
An absorbent boom has been laid across Milford Haven Docks after a fishing boat sank.
Milford Haven Port Authority said the absorbent retaining boom had been set up as a precautionary measure after a “minimal amount” of bilge water was recovered.
The wooden fishing vessel Accordance sank early on January 18th, but as it was not in use, all fuel oil had been removed and weekly inspections were carried out, the Port Authority said.
Harbourmaster Mark Andrews said: “Divers have made an underwater inspection and plans are in hand to identify the best way to remove the vessel, which is well clear of any operational area.
“No other vessels are being affected by this incident,” he added.