The fake terrorist rode into Old Town Square in the Czech capital on Sunday in a Humvee vehicle, alongside a camel.
Terrified tourists, including children, ran for safety as the men let off fake gunfire and riled up crowds.
'I was entering Old Town Square from a far corner and heard gunshots,' Prague resident Andrea Steinova told the New York Times.
'Then I saw a group of about 40 people, some of them yelling in Hebrew, running toward me. A couple of them tripped and fell, and others ran over them.'
The activists donned fake beards, suicide bomber vests and even had a 'hostage' in an orange jumpsuit on board their Humvee, Daily Mail reported.
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