Thresher shark caught on camera at Fishguard Harbour Published duration 6 December 2016

image copyright @danwilliams707/Twitter image caption The shark in Fishguard harbour

A rare shark was caught on camera after being spotted in a Pembrokeshire harbour.

Daniel Williams, 35, filmed the thresher shark at Fishguard Harbour on Monday.

Sea Trust Wales said thresher sharks can grow up to four metres (13ft) long and have a distinct scythe-shaped tail.

Mr Williams said: "I have been working on the quay for 11 years and have seen seals and larger fish, but nothing like this. I was so shocked."

A Sea Trust Wales spokesman said: "The shark may have been attracted to the harbour mouth by shoaling fish.

"Threshers are quite rare but we seem to have had a few sightings in Pembrokeshire waters in recent years."