A pack of tiger sharks has been spotted feeding on a huge whale carcass near Rottnest island off the Western Australian coast on Tuesday. Fishermen and boat operators were warned to stay away as state fisheries officials inspected the area, local media reported. Rottnest Island lies near the state capital of Perth. The sharks are believed to be juveniles tiger sharks measuring up to two meters long. But fisheries officials said bigger sharks could soon be lured to the area, local media reported. RT on Facebook: http://www.facebook.com RT on Twitter: twitter.com