A bus crashed near the Italian city of Venice after falling from an elevated street, killing at least 20 people and injuring others on Tuesday, authorities said.

The bus was carrying foreign tourists, including Ukrainians, Renato Boraso, a Venice city official, said. Boraso said the bus was bringing tourists to a camping site. Italian media reported that German tourists were also aboard the bus.

Venice prefect Michele Di Bari said that at least 20 people were killed, including two children, and that there were 15 survivors from the crash in the Mestre suburb of Venice.

Venice Mayor Luigi Brugnaro wrote on X, formerly Twitter, that the scene of the crash was “apocalyptic” and that he had already declared the “city’s mourning” for the “numerous victims” who were on the bus.

According to local media, the bus fell a few meters before crashing close to Mestre’s railway tracks, where it caught fire. Emergency crews were on the scene. The state police said they were on-site to aid victims and “to investigate.”

Four of the injured were in serious condition following the accident in the Mestre borough, Boraso said.

The City of Venice on social media confirmed that all the injured had been transported to a nearby hospital and that railway lines had been reactivated. 

Premier Giorgia Meloni expressed her “deepest sorrow” after the crash. “Our thoughts go out to the victims and their family and friends,” she wrote on social media.

This is a breaking news story. Please check back for developments.