(VOI) - A total of 18 wanted men were arrested and amounts of ammunitions were seized by police forces during crackdown operations in separate areas in Basra, a police source said on Monday. “Policemen waged security operations in Basra, where they arrested 18 wanted men,” the source told Aswat al-Iraq – Voices of Iraq – (VOI) on condition of anonymity. “They seized different amounts of ammunitions in north and central Basra,” he added. Basra, Iraq's second largest city and oil hub, 590 km south of the Iraqi capital Baghdad, had witnessed immense security unrest a few hours after Iraqi Prime Minister Nouri al-Maliki announced the launching of Operation Saulat al-Forsan (Knights' Assault) to impose order in the province.