AFP

BRINDISI ITALIAN authorities searched on Monday for a suspect caught on surveillance cameras as he detonated a bomb at a school, killing a 16-year-old girl and injuring five other teenagers.

Investigators in the southern city of Brindisi released a series of images showing a man with slicked-back hair standing outside the school on Saturday morning.

In the video, he can be seen looking at students as they get off a bus, then pressing some sort of remote control or mobile phone to detonate the bomb, journalists who saw the footage reported.

Saturday’s blast outside a vocational high school ripped through a group of students as they waited to begin classes. The bomb, which was made from three gas canisters, killed Melissa Bassi, 16, and seriously wounded five other students who suffered burns and other wounds.

Italian media reported on Sunday that two men had been questioned Saturday in connection with the attack, though they were later released.