A dolphin trapped in a blue T-shirt has been spotted swimming in a Western Australia (WA) bay, sparking concerns it may have been “an intentional act”.

The entangled dolphin wrapped in a singlet was photographed by a concerned member of the public in Koombana Bay, Bunbury, located on the country’s south west coast, on Australia Day (January 26).

WA’s Department of Parks and Wildlife said it was likely to be a “intentional act” of animal cruelty, in a statement released on Facebook.