More than 150 experts worked to save Ottavia Piana, who fell while charting Bueno Fonteno cave near Bergamo

An injured woman trapped in a cave in northern Italy has been lifted to safety, ending her four-day ordeal.

Ottavia Piana, a speleologist, was rescued in the early hours of Wednesday. She had been exploring an uncharted area of the Bueno Fonteno cave near Bergamo on Saturday afternoon when she fell five metres, fracturing her face, ribs and knees.