Trevi fountain water turned red
The water in Rome's Trevi Fountain has been turned partially red in front of a crowd of tourists and locals, according to an Italian news report.
In 2007 a man dyed the water of the tourist attraction completely red, with the images seen across the globe.
One Friday the Ansa news agency said a small portion of the fountain's water was turned red.
Scores of police and firefighters quickly arrived at the scene to try to prevent the dye from spreading, using buckets and floating devices.
Shortly afterwards the colour was gone except for a stain left on the marble touched by the water.
A diver inside the fountain also helped contain the damage, while part of the fountain was closed off to hundreds of people looking on.
It was not immediately clear if the stunt was carried out by the same man behind the 2007 act, Graziano Cecchini.
Experts said at the time that the fountain would not be not permanently damaged and the marble statues depicting the sea god Neptune on his chariot had not absorbed the colour.
The landmark fountain is a classic tourist hotspot. It was famously featured in Federico Fellini's 1960 movie La Dolce Vita, with Anita Ekberg seductively splashing in the water and calling out to Marcello Mastroianni.
Many visitors flip a coin into the fountain. Tradition says that doing so ensures a prompt return to the Eternal City.