BAGHDAD (AFP) - Assailants fired dozens of mortars and rockets at an Iranian exiles camp in Iraq in a dawn attack that killed five people Saturday, the first deaths from violence since they resettled near Baghdad last year. It was not immediately clear who was behind the assault on Camp Liberty, a former US military base on the western outskirts of the capital housing about 3,000 members of the People’s Mujahedeen of Iran, or the Mujahedeen-e-Khalq (MEK). The United Nations mission in Iraq called for an immediate probe and said monitors were following up on the deaths, while the UN High Commissioner for Refugees condemned what he called a “despicable act of violence.”