Rescue workers are attempting to free a researcher trapped deep inside a cave in Italy.
Speleologist Ottavia Piana was injured after falling around five metres (16ft) on Saturday while exploring the Bueno Fonteno cave, to the east of the city of Bergamo, in northern Italy.
She was taking part in an expedition to map an uncharted area of the cave, and was around four hours from the entrance when the fall took place, according to rescuers.
The team of around 20 rescuers reached her late on Sunday, and used small explosives in an attempt to breach the last 100 metres to get to her.
She was found alert and responsive, according to rescuers.
However, it is not yet known how long it will be before she is freed and brought back to the surface on a stretcher.
A spokesman for the rescue operation, which also includes dozens of people working above ground, Mauro Guiducci, said: “One thing is certain, these kinds of operations are very long.”
Dozens of rescue workers are involved in the operation. Pic: AP
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Temperatures in the cave are usually around 7-8C, with high humidity, adding another layer of complication to the rescue operation.
According to local media reports, Ms Piana was rescued from the same cave last year after spending two days trapped inside.
