Thames dolphin found dead after washing up on riverbank

A dolphin spotted swimming through the River Thames has died, as mystery continues to surround how it came to be in fresh water.The two-metre long dolphin was first spotted in the waters of the London river on 30 October, and had been seen on several occasions through the capital.In a tweet, officers wrote: "Sad to tell you that a dead Common #Dolphin was washed up on the foreshore at Wandsworth yesterday.