British police arrested an elderly man for holding a sign referencing Gaza and stating support for the banned group Palestine Action, according to Iran's Mehr News Agency.
Activists urged UK Foreign Secretary Ed Miliband to speak with demonstrators being arrested outside the Labour Party conference in Liverpool, Anadolu Agency reported.
Demonstrators were detained while protesting the UK government's decision to proscribe Palestine Action as a "terrorist" organization.
Ed Miliband was approached by protesters at a restaurant who challenged him over the government's proscription of the group.
Over 250 protesters sat outside Labour's party conference in Liverpool in support of the proscribed organisation, the BBC reports.
Officers arrested demonstrators from Palestine Action in Liverpool as the Labour Party conference got under way, Al Jazeera reported.
Demonstrators outside the ruling party's conference called for solidarity with Palestine Action, a group that has been banned in the UK.