At least 18 people were injured on the bus which was carrying many children. At least one child is in a critical condition, reports Repubblica, while five more people were hospitalized.
According to national press agency Ansa, the accident occurred on the corners of Via di Malafede and Via Ostiense at around noon on Sunday August 13.
According to Repubblica, the top of the bus was torn off after the driver failed to see a notice that prohibited buses taller than 2m 40cm from traversing the underpass.
According to Corriere della Sera, the bus was carrying holiday makers mainly from France and the UK staying at a nearby camping site. The bus collided with an underpass on the Roma-Lido railway.
According to the same report in Corriere della Sera, the 70-year-old driver apparently did not notice the warning sign forbidding vehicles taller than 2m 40cm. There were also no signs of breakage.
According to Corriere della Sera, the driver was not under the influence of alcohol.
Further south off the coast of Naples, between the islands of Ischia and Procida, a diving instructor and a 13-year old girl died during a diving exercise on Sunday. The body of diving instructor Antonio Emanato, 42, has been recovered.
The girl's body is believed to be trapped in a cave 12 meters under water. Divers from Italy's fire department are mounting an operation today to recover the body, according to Repubblica.
It is the second tragic accident in the waters off the archipelago in a week. Alessia Piatti, 18, drowned off Ischia last week. Repubblica says the recent extreme weather conditions have affected the tides off the islands.
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