According to the same source, the first alert about the disappearance of the 72-year-old man was given at around 4 pm on Tuesday 30 April, with health centers and other organisations that may have recovered the missing man being contacted.

As the hours passed, the searches were expanded and the resources on site were reinforced, they added.

At the moment, the GNR has three teams with dogs and one with drones searching the area, according to this military force.

The National Civil Protection Authority, which has been supporting the operation, presented on its website today the presence of 43 operatives and 13 vehicles on the ground.