Three men have been detained on suspicion of "forming and joining unlawful paramilitary or para-police formations" in the northern Bosnian city of Velika Kladusa, security authorities said Monday. "During the search, the police found and seized six hand grenades, a grenade launcher round, two anti-personnel mines, 26 rounds of ammunition for M-84 machine gun..., an ISIS flag, plastic stencils used to replicate ISIS emblem, cell phones," said the State Investigation and Protection Agency, or SIPA, Bosnia's domestic intelligence service. SIPA identified the three men only by initials as N.S., born in 1988, A.M., born in 1960, and Dz.V., born in 1989, without saying exactly when they were detained. In February and September last year twenty people were detained as part of an operation on suspects allegedly "financing, organizing and recruiting Bosnians" to fight in Syria and Iraq.