the institutionalised racism of police'

Met Police arrested a total of 76 people at the demonstration (not pictured), Scotland Yard confirmed

Shoppers described some of the masked protesters as 'intimidating bullies' after the protest last night

Shoppers took to Twitter to condemn the behaviour of some of the demonstrators at last night's protest

Stephanie Haigh ‏wrote on Twitter: 'I'm all for protests IF the reason is genuine but the scary masked idiots in Westfield tonight we're just intimidating bullies.'

Meanwhile, shopper Tom Bassindale said: 'Pretty awful behaviour by "protesters" at Westfield intimidating shoppers & staff. Police calm and efficient.'

Laura Kate ‏said: 'The protesters are inside Westfield now. Being neither calm nor particularly peaceful, from my observation. Blergh.'

And another, who took to Twitter, under the name @afterfuse, said: 'Just found out why I couldn'tincluding a containment for the purpose of preventing violence and effecting arrests' were used to help control the demonstration in support of those protesting against Mr Garner's death

Police arrested 76 people. It was reported that the centre's security guards were assaulted by protesters

Officers patrolled the west London area surrounding the mall heavily last night following the mass protest

In a statement, Scotland Yard said the breakaway group assaulted security staff and caused damage to property during the demonstration.

London protest organisers, London Black Revs, wrote on Facebook that the event was being held to denounce 'the lack of consequences for Eric Garner's murderer, as well as against the institutionalised racism of police in both the U.S. and the UK, and the continued murders of black people that go unpunished'.

Metropolitan Police