A Thai business magnate has been charged after he was allegedly caught poaching animals, including a black panther, in one of the country's protected wildlife sanctuaries.

Premchai Karnasuta, the largest shareholder of one of Thailand’s biggest construction firms, was arrested with three other suspects by park rangers at Thungyai Naresuan national park.

His three companions are believed to be employees at the 63-year-old’s company, Italian-Thai Development, according to local media.

All four face charges of illegal hunting and illegal possession of carcasses of protected animals.

Mr Karnasuta was granted bail of 150,000 baht (£3,420) after being detained for two days, local media reported.

Thailand’s Department of National Parks, Wildlife and Plant Conservation said the businessman was found with the skinned carcasses of the black panther, as well as a Kalij pheasant and a barking deer.

All three are protected species under Thai law.

Authorities, who released images of Mr Karnasuta with hunting gear, also seized three rifles and 143 bullets.

Officials measure the pelt of a black panther in the Thungyai Naresuan Wildlife Sanctuary (AP)

Thungyai Naresuan Wildlife Sanctuary, a Unesco World Heritage Site, is situated in the west of the country at the border with Myanmar.

The reserve is home to a diverse range of animal species, including tigers, leopards, bears and elephants.

Police Lieutenant General Kittipong Ngaomuk said all four denied all charges.

“At this stage, we learned Mr Premchai had sought approval to visit the park in one of the allowed zones," he told the Bangkok Post newspaper.

The women hunting big-game poachers Show all 8 1 /8 The women hunting big-game poachers The women hunting big-game poachers The Black Mambas are a specially trained team of rangers who police the park night and day to protect the animals from illegal hunting Julia Gunther The women hunting big-game poachers Lukie, 26, says, 'The next generation must know rhinos in life. If poaching is allowed they will only see them in a picture' Julia Gunther The women hunting big-game poachers Proud finds and disables a snare laid by poachers Julia Gunther The women hunting big-game poachers During a scouting trip, the Mambas examine an impala horn Julia Gunther The women hunting big-game poachers Qolile, 21, learned about wildlife and conservation at Timbavati Bush School. She would like go further both with her studies and with the Black Mambas Julia Gunther The women hunting big-game poachers Mambas on the march. The unit has so far removed more than 1,000 poachers’ snares, and been awarded the UN’s Champions of the Earth award Julia Gunther The women hunting big-game poachers Yenzekile reports the location of a young, slain kudu to the control room Julia Gunther The women hunting big-game poachers Black Mambas Mirren, 26, Winnie, 22, Belinda, 27, and Dedeya, 26 Julia Gunther

"However, he went in before getting the approval and entered a prohibited zone."

Shares in Italian-Thai Development dropped 3.63 per cent following news of Mr Karnasuta’s arrest, according to the Nikkei Asian Review.