Police in China used a drone to locate and arrest trafficked prisoners who had been on the run for 17 years.
Yongshan police said in a statement on the application of Chinese envoy WeChat on Friday that multiple attempts to re-shoot Song Jang, 63, failed. Earlier this month, they received clues about his whereabouts, which took them to the mountains behind his hometown in Yunnan, southern China.
Teams search Song in what police describe as difficult terrain and dense vegetation. After finding no trace of the man, they asked for drones from the local police to look for possible hiding from above.
Shortly afterwards a drone notices a blue steel roof on a steep cliff. He also found household rubbish beyond what police described as a cave.
When search teams move earlier in September, they find a "spotless old man" in front of the cave and identify him as the elusive Song, who was imprisoned in the traffic of women and children, but escaped from prison in 2002  Police said Sungo lived in a cave smaller than 21 square feet in size and too small for the average person to stand.
Photographs inside the cave released by police have blackened cookware that appears to have been used to cook over open fire and what looks like layers of makeshift mats on the cave floor.
Investigators say the fugitive has been living in seclusion for some time and has trouble communicating with officers.
They said that Sun had not bathed and washed "for a long time" and his lifestyle had "devastated" his body. He also cuts his own hair, uses plastic bottles to take drinking water from a mountain valley, and collects dry branches of trees to make a cooking fire.
The song is sent back to jail, police said.