World Bulletin / News Desk
"The bomb targeted the Mamlaha [police] checkpoint at Samawah’s southeastern entrance, killing two policemen and injuring several others," the source said, speaking on condition of anonymity due to restrictions on talking to media.
He said the death toll could rise further, however, due to the large magnitude of the blast.
"Security forces have since closed the checkpoint and are now conducting investigations into the circumstances of the incident," the source said.
Although Samawah enjoys relative security compared to other parts of war-torn Iraq, the city was rocked by a twin suicide blast on May 1 -- responsibility for which was claimed by the ISIL extremist group -- that left more than 30 dead and scores wounded.
Iraq has suffered a devastating security vacuum since mid-2014, when ISIL captured the northern city of Mosul, Iraq’s second largest city and overran large swathes of territory in the northern and western parts of the country.
While the Iraqi army, backed by U.S.-led airstrikes, has since managed to retake much lost territory, ISIL remains in control of several parts of the country, including Mosul.