The blue and yellow train is in circulation on the capital’s Metro A line as part of the ‘Train for Ukraine’ initiative.

“The initiative aims to express solidarity and closeness to the Ukrainian people in this dramatic historic moment,” mobility councillor Eugenio Patanè said.

“We want to say a decisive ‘No’, with no ifs and buts, to the horrors of war.” 

Rome residents and tourists alike have been eagerly taking photos and videos of the blue and yellow carriages.

The Italian capital has actively showed its support for Ukraine and condemned Russia for its invasion of the country in recent days.

Mayor Roberto Gualtieri will stage another candlelight procession, or fiaccolata, to call for peace in Ukraine and an end to the Russian invasion.

The march will begin at 7:30 am at the Campidoglio and make its way to the Colossseum, following the same route as last week when large crowds turned out to show their support for Ukraine.

“It will be an opportunity to reaffirm our support and closeness to the Ukrainian people at this difficult time,” Gualtieri said.

“I am sure that many mayors and administrators from all over Italy will participate to strongly demonstrate the unity of our country for peace and against a very serious and unacceptable military aggression.”