Officers from Staffordshire Police are currently dealing with protests at two sites in the West Midlands.
Protesters have targeted a Staffordshire based arms factory which they are accusing of making engines for drones exported to Israel.
The Palestine solidarity campaigners are attending the protest for a day of action in a bid to prevent the factory from operating.
They have timed the protests to coincide with the first anniversary of Israel's 2014 attack on Gaza.
Our role in this incident is to facilitate peaceful protest and minimise the impact on others, ensuring the safety of protestors, emergency teams and the wider community. "In Tamworth those on the roof voluntarily came down and were directed by police to leave the area.
The activists are accusing UEV Engines Ltd of complicity in Israel's alleged war crimes in Gaza.
Not only has the UK government done nothing to stop Israel massacring Palestinians, it actually provides Israel with enormous diplomatic, financial and military support.
According to the UN, during its attack on Gaza last summer, Israel killed over 2200 Palestinians including more than 500 children.
Over 30 UK organisations and nine international organisations have endorsed the 'Block the Factory' solidarity action which is taking place today.