Protestors have been blasted as 'thugs' in claims that they set off smoke grenades at the Grenfell Tower memorial in an angry protest over the Labour party's policy over transgender rights.

Video shows clear puffs of smoke as the activists cover their faces with scarves and chant: 'Trans women are women'.

They gathered in Kensington, West London, last night close to the site of the 2017 blaze, which killed 72 people.

They were protesting against a group called Labour Women's Declaration who believe demands for rights from transgender pressure groups will infringe the rights of women as the Labour party is seized by infighting over the issue.

Footage shows a puff of smoke (circled) coming from the trans activists as they turned out against the Labour Women's Declaration

Pictured: Grenfell Tower in Kensington, West London, before the blaze killed 72 people

A Twitter user named Aja shared footage of the protest online, adding: 'Labour women's declaration meeting protested by t****. They set off smoke grenades.

'The meeting was by Grenfell in a community still grieving that tragedy & these scum think smoke grenades are ok.'

Pictured: Masked protestors stage a demonstration at the Labour Women's Declaration meeting in Kensington

It comes amid a row in the Labour Party over trans rights which sparked the creation of the LWD.

Among its 10 points are: 'Women have the right to maintain their sex-based protections, as set out in the Equality Act 2010.

'These include female-only spaces such as changing rooms, hospital wards, sanitary and sleeping accommodation, refuges, hostels and prisons.'

The petition is in response to the grassroots Labour Campaign for Trans Rights, which leadership hopefuls Lisa Nandy and Rebecca Long-Bailey both signed up to.

Trans activists allegedly set off smoke bombs in the shadow of Grenfell Tower in Kensington, West London

The campaign's 12 demands include: 'Accept that trans women are women, trans men are men, and non-binary people are non-binary.'

This sparked concerns that people who are born male would have access to women's only spaces.

But the Labour Campaign for Trans Rights demands of the party: 'Accept that there is no material conflict between trans rights and women's rights, and that all trans women are subject to misogyny and patriarchal oppression.'

It calls for the expulsion from the party of anybody who fits into their interpretation of a 'trans-exclusionist hate group'. These include Women's Place UK and the Lesbian, Gay and Bisexual Alliance.