Animal rights campaigns in Indonesia have called on the government to ban the use of performing monkeys on the streets of the country's capital.
It is believed at least 450 long-tailed macaques are being used for the practice of 'topeng monyet', where the creatures are made to dance and perform stunts to earn their handlers money, the Jakarta Globe reports.
The Jakarta Animal Aid Network (JAAN) called on the authorities to impose a ban on the activity, which it says is a violation of the basic principals of animal welfare.
Spokesman for the group Benfika stated at a rally last weekend: "Some people may think it's funny but they don't realise the monkeys are in agony."
A handler can expect to earn up to 70,000 rupiahs (£4.94) a day by making the primates perform for several hours at a time by the side of some of the city's busiest roads.
JAAN stated it has gathered more than 10,000 signatures calling for an end to the practice through an online petition.