First picture of grandmother killed in shark attack after arm torn off

Other swimmers heard ‘ungodly screaming’ and found Arlene Lillis surrounded by a pool of blood in the water (Picture: Facebook/Google)

A tourist was killed in a shark attack while swimming off a Caribbean island after her arm was bitten off.

Arlene Lillis, from Minnesota, was enjoying a swim in the crystal clear waters of Dorsch Beach on the island of Saint Croix in the US Virgin Islands when she encountered a shark.

The deadly incident happened at about 4.30pm on Thursday...