PARIS, April 28 (UPI) -- French police arrested five Islamists on suspicion of urging Muslim youth to fight against the U.S.-led multinational forces in Iraq. Police sources said Thursday the suspects were seized in Paris and the southern port city of Marseilles and referred for interrogation by the intelligence department. They said one of the suspects, Said Maghribi, was arrested in a Paris suburb after being observed for several months. Maghribi, 39, a Frenchman of Arab origin, was mobilizing Muslims to go to Iraq through Syria to fight foreign forces. He traveled to Afghanistan in the past and tried without success to enter Chechnya.