Police probing the bomb attack that killed a 16-year-old girl in southern Italy on Saturday are said to be questioning a new suspect.
Media reports say he was located after going missing several days ago.
It follows the release of CCTV images in which a smart-looking man appears to activate a remote control before the blast outside the school.
As students returned to classes and paid tribute to Melissa Bassi, the motive for the attack in Brindisi remains a mystery.
Officials have played down initial suspicions of mafia involvement, suggesting the bombing may have been the work of a lone individual. Media reports claim two men, one an ex-soldier with knowledge of explosives, have already been questioned and released.