At least six tigers have been found in Salak Phra Wildlife Sanctuary in Kanchanaburi for the first time in over 30 years.
The chief of Khao Namphu Nature and Wildlife Education Centre, part of the 40,000-rai sanctuary, said cameras last year captured six Indochinese tigers.
He said officers can identify three tigers based on the tiger's skin print database as coming from Huai Kha Khaeng Wildlife Sanctuary in Tak province, north of the Salak Phra Wildlife Sanctuary.
The other three were a mother tiger and her two cubs. There is no skin print database for the group.
The officer said he believes one of the cubs was male and it was seen in January this year around Tha Thung Na Dam close to the sanctuary.
"It is hard to believe that the release of bantengs [Southeast Asian wild cattle] in the sanctuary in recent years has led to the increase in tiger population. Our efforts have produced results beyond expectations," he said.
The presence of the tigers shows the well-being of the forest ecosystem, he said.