A 32-year-old gym teacher has fallen 328 feet to his death in front of his shocked brother while hiking along an Italian mountain range.

Federico Mattiacci, a physical education teacher from Milan, was walking along a ridge between Cima Presena and Passo dei Segni in the Presanella mountain range in the Italian Alps in the region of Trentino-South Tyrol at an altitude of almost 3,000 metres when he slipped and fell.

According to the news site MilanoToday, Mattiacci fell 100 metres (328 feet) into a ravine while his helpless brother could only look on and watch.

The brother, name not reported, sounded the alarm to rescue teams at 11.20 am.

The teacher lost his footing on loose gravel on the ridge pass before tumbling to his death, according to the brother.

A rescue team in a helicopter arrived at the scene shortly afterwards, however, paramedics could only confirm that the Milan teacher had died from the fall.

The young man’s body was recovered at around 1pm after being airlifted onto the helicopter and taken to the town of Vermiglio. His brother arrived shortly afterwards to assist the authorities with their enquiries.

It is unclear if the local authorities are investigating the incident.