A wild monkey was seen stealing food from the back of a moving truck.

The long-tailed macaque boarded the delivery vehicle when it slowed down beside the bridge where it had been staying with its troop in Bangkok, Thailand, on April 2.

It searched the variety of goods being carried by the vehicle and emerged with a large plastic of pop corn.

Footage shows the monkey thief throwing the snacks to the road and following quickly after.

Driver Sam Kanata, who was behind, the lorry said: ‘The monkey was like a skillful thief.'

Thailand's growing population of primates has become a problem as the animals are known to damage property, such as cars and buildings. Unafraid of the consequences, they have also started stealing food from tourists and locals.

Many provincial governments in Thailand have been lobbying for the removal of crab-eating macaques from the country's list of protected wildlife. The legal protections have been hampering efforts to curb the pillaging simians' ballooning numbers.

Meanwhile, the Thai government is taking steps to manage the monkey population in the country, including creating sanctuaries, mass sterilisation programs, educating the public on how to handle the animals properly, and relocating them to more suitable habitats.