Crayfish

Natural Resources Wales (NRW) is carrying out urgent tests on the River Irfon near Builth Wells after they received reports of dead crayfish.

Tests confirmed the existence of Crayfish plague which is believed to be "harmless to people, pets, livestock and all other freshwater organisms".

White-clawed crayfish were thought to have vanished from the area in 1991 after a deadly plague wiped out local populations.