A bull shark likely behind fatal attack of 16-year-old girl swimming in a river, say authorities

• Authorities in Perth, Western Australia, believe that a bull shark is responsible for a fatal attack. 
• 16-year-old Stella Berry was killed in the Swan River in Perth. 
• Bull sharks, which can live in salt and fresh water, can be aggressive though fatal attacks are rare.

Authorities in Perth, Western Australia, believe that a bull shark could be responsible for the attack that killed a 16-year-old who went jetskiing with friends.

The Australian fisheries minister Don Punch said that it was too early to confirm the species of shark responsible for the fatal attack in the Swan River but told ABC News that he believes it may be a bull shark.