Vigilantes have been patrolling Mumbai, India with a water tanker - and spraying anyone who urinates in public.

The vehicle, dubbed the "P***ing Tanker," features a water canon, a logo of a person urinating and a large red sign, reading: "You Stop, We Stop."

It also includes a large rooftop area, from which the masked vigilantes can blast unsuspecting members of the public with water.

The bright yellow tanker is believed to be the creation of an anonymous "anti-public urination activist group," called the Clean Indian.

It aims to deter those who feel no shame relieving themselves in the streets of India's most populous city by "taking a leak" on them. It also hopes to combat the health risk of public urination - which the activists claim remains a major problem in the country - 'one spray at a time'.

The group posted a video  on YouTube, with the caption: "You wont believe what we did to people using the outdoors as a toilet" (sic). But the footage has divided opinion, with many users blaming the lack of public toilets in the area.