A bomb has exploded in front of a school in the southern Italian city of Brindisi killing at least one girl and injuring six others.

The blast went off as students were arriving at the Francesca Morvillo Falcone vocational school at around 07:45 (05:45 GMT).

Although no-one has said they planted the device, the city's mayor has blamed local mafia.

The BBC's Alan Johnston reports.