Australian naturalist and television personality Steve Irwin has been killed by a stingray during a diving expedition off the Australian coast.

Mr Irwin, 44, died after being struck in the chest by the stingray's barb while he was filming a documentary in Queensland's Great Barrier Reef.
Paramedics from Cairns rushed to the scene but were unable to save him.
Mr Irwin was known for his television show The Crocodile Hunter and his work with native Australian wildlife.
Me and my bro's were devoted fans of NatGeo,Animal Planet and all things wild, and steve's show was among our favourites...Steve, you'l be missed dearly mate' :(