Shark dies after being found in roadside puddle in outskirts of Adelaide

A small Port Jackson shark spotted still breathing in a puddle at One Tree Hill this morning has since died.

A passer-by made the bizarre discovery at around 10.30am, at the intersection of Yorktown Road and Black Top Road.

South Australian police said a member of Fauna Rescue SA swiftly arrived to rescue the shark, however, it later died.

Police are still unsure how the shark came to be in the puddle, but believe it may have been caught earlier today and dumped, or may have been a pet growing too big for its tank.