People are worried about this lost beluga whale that was spotted in London's River Thames

Benny the beluga whale is a long way from home.

After sightings of the animal swimming in London's River Thames went viral on Twitter on Tuesday, scientists and marine rescuers have expressed their concern for its wellbeing.

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Here are some clips of the whale, nicknamed "Benny", which were filmed yesterday morning.

For anyone twitching the #BELUGA its been feeding around the barges (see last tweet for location)...

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