A mechanic was killed and three people were injured in a horror lift accident in Thailand.

Chief mechanic Amnart Klaijing, 43, was transporting goods with other employees inside the aging lift when the sling snapped on December 3.

The cabin plummeted from the fifth storey of the building in Bangkok, killing Amnart and severely injuring the other men.

Police Captain Chaiyawat Namchanda of the Taling Chan District Police Station said they received a report at 3 pm local time.

Medics arrived at the scene and rushed the survivors - identified by police as company owner Weerachai Ratchawanich, 51, and Myanmar national Sai Khammuang, 25, and Laotian Ton Sena Aoung, 26 - to the Siriraj and Srisawan Hospitals in critical condition. Amnart was found dead on the bloody floor of the lift.

Investigations found that the 6.6ft (2m) lift was an old 'basket-style' lift supported by a single sling. It had a maximum capacity of 661 lbs (300 kgs).

An employee named Nanthaporn said the workers, whom she described as having 'large builds', had been transporting products to the fifth floor. Among the items were several wooden poles that exceeded the height of the lift cabin.

The police captain said: 'Because it was an old elevator, there were no sensors. When they reached the top, the wooden poles kept hitting the ceiling, which caused the sling rings to break and the lift to fall.'

In August, mechanic Wisatrat Tangsoh, 22, was crushed to death by a lift he was repairing at the Suvarnabhumi International Airport in Bangkok. He was working at the bottom of the shaft when the glass cabin suddenly descended on him.

Thailand's capital Bangkok is a rapidly growing metropolis, thought it still faces developmental challenges such as outdated infrastructure, chronic flooding, traffic congestion, and air pollution.

Corruption is also a difficult issue for the city, with a recent score in 2023 of just 35 out of 100, according to Transparency International. Researchers from the organisation also found that 88 per cent of residents believe government corruption is a big problem in the country.