Tourist leaves locals fuming as she walks through Rome's Trevi Fountain to fill up her water bottle

When in Rome, so they say, do as the Romans do.

But one woman went a touch too far when she was seen splashing through the Trevi Fountain and filling up her water bottle recently:

In footage that has been shared on social media, an unnamed tourist was spotted marching through the iconic landmark.

As fellow tourists and holidaymakers watch on, the woman, seen wearing a blue t-shirt and a cap, nonchalantly places her bottle beneath the running water, filling her bottle right up to the top.

She then saunters off back to her group, seemingly unaware of the huge social faux-pas she has just committed.

But she is quickly reminded.

As she steps off the fountain, another woman, in an official looking jacket, is seen storming over towards the tourist.

The video then cuts off just as the pair begin talking to one another, presumably with the woman getting an absolute b*****king.

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The bizarre scene was filmed by Lex Jones, who said she couldn't believe what she was seeing.

"I was just like, wow, this is crazy so I started videoing it," Jones said.

"There were signs all over saying that's not allowed."

Jones said the woman was eventually led away by the Italian officer, though she 'kept trying to explain her side and didn't really understand why she was in trouble'.

This isn't the first time one of Italy's most iconic attractions has been badly treated by tourists, though.

Earlier this summer, a British visitor was seen carving his name into the Colosseum.

The clip, which was first posted by YouTuber Ryan Lutz, shows the man defacing the nearly 2,000-year-old building.

After realising that he had been caught, the tourist spins around and looks right into the camera, laughing.

YouTube/@rytz5873

Lutz is then heard saying: "Are you serious man? That's f**ked up. Stupid a**hole."

The man involved was eventually identified as Ivan Dimitrov, a 27-year-old fitness instructor who lives in Bristol.

Following a public outcry over the incident, Dimitrov wrote a letter of apology to Roberto Gualtieri, the Mayor of Rome.

He said: “Through these lines I would like to address my heartfelt and honest apologies to the Italians and to the whole world for the damage caused to an asset which, in fact, is the heritage of all humanity.”

He added: “It is with deep embarrassment that only after what regrettably happened did I learn of the antiquity of the monument.”