The activists accused the Israeli companies of “cooperating in the murder of defenceless Palestinians” and compared their presence at the exhibition to “collaborating with Nazi Germany”.
Police confirmed that they had opened an investigation into the incident.
The MSPO exhibition, described by organisers as one of Europe’s most important defence industry gatherings, brought together companies, military officials and delegations from dozens of countries.
Israel’s contingent included Elbit Systems, Rafael, Israel Aerospace Industries, Bird Aerosystems, D-Fend Solutions and Smart Shooter.