Hundreds of dead sharks and fish wash up on two beaches in Wales

Cefn Sidan beach in Carmarthenshire, where a net full of dogfish was found last weekend. Photograph: Garey Lennox/Alamy

Hundreds of dead sharks and fish believed to be part of a discarded catch have washed up on two Welsh beaches.

Dog walkers found a full net of dogfish, also known as catsharks, on Carmarthenshire’s Cefn Sidan on Saturday. A few days earlier, hundreds of dead sharks and fish had been found on Saundersfoot beach in neighbouring Pembrokeshire.