Protesters have locked themselves together and set off red smoke flares after throwing paint outside the offices of a defence company in London.
Two campaigners from Palestine Action were spotted lying on the floor outside French weapons maker Thales - a firm said to provide a wide range of weapons to Israel.
The latest protest comes as tensions grow ahead of Saturday when thousands of pro-Palestine protesters are expected to take to the streets of London on Armistice Day.
Footage shared online shows the pair shouting pro-Palestine slogans after locking themselves together.
The group claim Thales works with Israeli weapons company Elbit, which has previously been targeted by the group.
In a statement, Palestine Action said: “At 7am, before workers could enter the London offices of Thales' weapons firm, two activists from Palestine Action attached themselves to each other using lock-on devices, preventing all access to the Quadrant.
“The premises were also drenched with red paint using repurposed fire extinguishers, symbolising the bloodshed of the Palestinian people.
“On the day of the international call to action under the 'Shut It Down for Palestine' banner, Palestine Action have this morning acted on that call.
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“As ever, these activists have put their liberty on the line, using direct action to respond to Palestinian pleas for the world to stop supplying arms to, and to reject complicity with, Israel's apartheid regime.”
Palestine Action have also accused the UK branch of Thales of supplying weapons “independently” to Israel.
"Thales partners with Israel's largest weapons company, Elbit Systems, under their joint venture 'UAV Tactical Systems' (or U-TacS)," the group said.
“U-TacS operates from their factory in Leicester, a site which has been targeted by direct action for over two years. This site is used for the export of equipment for military drones in huge volumes to Israel.”
Two campaigners from Palestine Action were spotted lying on the floor outside French weapons maker Thales, which provides a wide range of weapons to IsraelX/ Palestine ActionThe incident comes ahead of a huge demonstration set to take place in central London where thousands of pro-Palestine campaigners are expected to protest the conflict in Gaza.
The Home Secretary clashed with Sir Mark Rowley, the Met commissioner following his decision to allow Saturday’s pro-Palestinian march to go ahead.
Suella Braverman has accused senior police officers of being "biased" on their policing of protests and implement "double standards" by taking a softer approach towards left-wing groups such as Black Lives Matter.
But following an emergency meeting, Rishi Sunak said Rowley had provided “reassurances that the police are taking every step necessary” to prevent protests disrupting Remembrance services.
