London and Dublin joined protests against US-based agriculture giant Monsanto.

London and Dublin joined nearly 450 global cities where mass rallies against US-based agriculture giant Monsanto, the leading producer of genetically engineered seeds and chemical herbicides, were planned to be held on Saturday.

May 23 marks the March Against Monsanto (MAM) day seeking to raise awareness of the possible health threats posed by the $20-billion corporation’s produce. The worldwide events’ coordinating group, MAM, claimed on its website to have registered at least 428 cities across 38 countries to hold anti-Monsanto demonstrations.

The group’s branch in London gathered outside the parliament building in Westminster, where a live feed of the event broadcast speakers criticizing Monsanto’s excessive use of genetically modified organisms (GMO).

“No seed dictatorship,” read one of the protesters’ banners in Dublin, Ireland, where over 2,000 people registered to attend the third annual March Against Monsanto.