Five anti-war protestors have been arrested outside the offices of the US defence firm Raytheon at the science and technology park in Derry.
The protest by the Derry Anti-War Coalition began at the Springtown plant around 2.30pm.
The five being held are being questioned in connection with a range of offences.
Nine women also chained themselves together on the top floor of the building, in protest at the Israeli offensive in Gaza.
They were later allowed to leave by police, and the protest has now ended.
