The deceased girls were at the waterfall with eight other friends. One of the girls was taking pictures when she slipped. This prompted her friend to grab her in an attempt to save her. But both of them fell over the edge into the waterfall .
One girl died instantly at the scene due to fatal injury caused by hitting the rock walls during her fall. Other girl succumbed to death while undergoing treatment, in the hospital, for broken jaw and fatal head injury.
Source: The Straits Times