LONDON, Aug 10, 2025 (BSS/AFP) - London's police service said Sunday that 
officers had arrested 522 people the previous day for breaching anti-terror 
laws by supporting the recently proscribed group Palestine Action.

In an update to its previous arrest tally, the Met said all but one of those 
522 arrests took place at a Parliament Square protest and were for displaying 
placards backing Palestine Action.

The other arrest for the same offence took place at nearby Russell Square as 
thousands rallied at a Palestine Coalition march demonstrating against 
Israel's war in Gaza.

The 522 total is thought to be the highest ever recorded at a single protest 
in the UK capital.

The Met made 10 further arrests, including six for assaults on officers, 
though none were seriously injured, it added.

The force said the average age of those arrested on Saturday was 54, with six 
teenagers, 97 aged in their 70s and 15 octogenarians.

A roughly equal number of men and women were detained.

The government outlawed Palestine Action on July 5, days after it took 
responsibility for a break-in at an air force base in southern England that 
caused an estimated œ7 million ($9.3 million) of damage to two aircraft.

The group said its activists were responding to Britain's indirect military 
support for Israel amid the war in Gaza.

Britain's interior ministry has insisted that Palestine Action was also 
suspected of other "serious attacks" that involved "violence, significant 
injuries and extensive criminal damage".

In a statement following the latest mass arrests, interior minister Yvette 
Cooper defended the government's decision, insisting: "UK national security 
and public safety must always be our top priority".

"The assessments are very clear -- this is not a non-violent organisation," 
she added.

- 'Concerns' -

But critics, including the United Nations and groups such as Amnesty 
International and Greenpeace, have condemned its proscription as legal 
overreach and a threat to free speech.

"If this was happening in another country, the UK government would be voicing 
grave concerns about freedom of speech and human rights," Greenpeace UK's co-
executive director Areeba Hamid said Saturday.

She added the government had "now sunk low enough to turn the Met into 
thought police, direct action into terrorism".

Police across the UK have made scores of similar arrests since July 5, when 
being a member of Palestine Action or supporting the group became a criminal 
offence punishable by up to 14 years in prison.

Police announced this week that the first three people had been charged in 
the English and Welsh criminal justice system with such backing following 
their arrests at a July 5 demo.

In its update Sunday, the Met revealed a further 26 case files following 
other arrests on that day are due to be submitted to prosecutors "imminently" 
and that more would follow related to later protests.

It believes 30 of those held Saturday had been arrested at previous recent 
Palestine Action protests.

Eighteen people remained in custody Sunday lunchtime, but were set to be 
bailed within hours, the Met added.

It noted officers from its counter-terrorism command will now "work to put 
together the case files required to secure charges against those arrested as 
part of this operation".