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,” 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.