Hundreds of protesters chant ‘shame on you’ before march to London's Parliament Square

A large crowd of people holding placards gather in Parliament Square (Yui Mok/PA)

Hundreds of protesters have chanted “shame on you” as police officers stood guard at New Scotland Yard, before marching to Parliament Square.

Officers erected barriers around the Metropolitan Police headquarters and the group of demonstrators, many holding placards aloft, spilled over on to the road next to the River Thames.