Staff at an aquarium in Achill in Co Mayo are worried about a rare white lobster which is turning blue.

The albino lobster, affectionately called Charlie, was named after Charlie O'Malley the fisherman who caught him off the coast of Achill in 2017, according to the Irish Examiner.

Its shell is becoming increasingly blue each time it moults, which is thought to be down to it living longer as it's not exposed to predators in the wild.

It's estimated only one in 100-million lobsters are white.