BAGHDAD: An Iraqi man killed his 19-year-old daughter after he discovered Al-Qaeda had recruited her as a suicide bomber in an area north of Baghdad, a police spokesman said Friday. Al-Qaeda has been recruiting women for suicide attacks because they can pass police checkpoints easier than men by concealing explosives under an abaya, a loose, black cloak that conservative Muslim women wear. Suicide bombers have been Al-Qaeda's most lethal weapon in Iraq, killing hundreds of civilians and members of Iraq's security forces. The killing of the young woman was discovered when security forces, searching for her on suspicion she had ties to Al-Qaeda, raided her father's home Thursday outside the former Sunni-insurgent stronghold of Baqouba, 35 miles (60 kilometers) northeast of Baghdad, said Maj. Ghalib Al-Karkhi, a police spokesman in Diyala province. The father, Najim al-Anbaky, was detained in the raid. He told police he had killed his daughter, Shahlaa, a month earlier.