In Iraq, at least four policemen were killed and four others were wounded in a suicide bombing attack in western Mosul on Thursday.Voice of Iraq news agency quoting police sources has reported that incident occurred when a suicide bomber blew up an explosive belt strapped to his body at a police checkpoint in al-Shefaa neighborhood in western Mosul. The assistant commander of one of the federal police units Colonel Helal Ashour was wounded in the attack. Mosul is the capital of Ninewa province, which is situated north of Baghdad.