A shocked British tourist went to the toilet and found a huge monitor lizard coming round the u-bend.

Jason Kingman, 37, from Gravesend, Kent, was horrified when he saw the enormous reptile staring back at him in Pathum Thani, Thailand, on January 21.

Footage shows the Godzilla-like venomous predator flicking its tongue before rearing its scaly head from the water to look around the bathroom.

Jason and his partner Chantima Chairisuk, 45, watched as the creature spent three minutes staring menacingly before turning around and disappearing back into the abyss.

Jason, who is visiting the country on holiday as a tourist, said it was the strangest thing he had ever found in a toilet. He added: 'My girlfriend called me and said there was something dirty moving in the toilet. I thought 'that's strange' and I never thought it would be a lizard. I was amazed when I saw what it was. There are many of them living in our garden but this was the first time I've ever seen one in our toilet.'

Chantima said she was about to use the toilet when she spotted a dark figure moving inside the bowl. She then left her phone on record while calling Jason to check the bizarre object, which later turned out to be the monitor lizard.

Chantima said: 'There were people outdoors spraying insecticide. I think the monitor lizard was trying to escape, so it hid inside our toilet. It eventually left our home and did not hurt anybody.'

The lizard disappeared on its own and has not been seen again since. It is believed to have returned through the sewers and found a nearby canal.

Asian water monitor lizards live in canals and ponds in large cities in Thailand where they feed on fish, snakes, frogs and scraps of food left by humans. They are aggressive when threatened and have a mildly venomous bite which sometimes carries harmful bacteria.