BAGHDAD.  At least nine people were killed and 53 others wounded in bombing attacks against two Shiite mosques in Iraq’s southern city of Hilla on Monday, a police source said.A suicide bomber wearing explosive vest blew himself up at Al- Wardiyah mosque in Hilla, some 100 km south of the Iraqi capital of Baghdad, and about five minutes later a bomb exploded in the nearby Al-Galagh mosque, the source told Xinhua on condition of anonymity.

The two attacks targeted worshipers in the Shiite mosques and some of the wounded people were in critical conditions, he added.No group has so far claimed responsibility for the deadly attacks, but the al-Qaida front in Iraq, in most cases, were responsible for such massive attacks in the country, raising fears that the terrorist group and other militia could return to widespread violence.Earlier on Monday, a series of car bombs and shootings mainly targeting Shiite areas across Iraq killed at least 61 people, including several Iranian pilgrims, and wounded some 200, apparently in an attempt to stir up sectarian strife among Iraqis.

Monday’s violence came amid escalation of sectarian tension between the Sunni and Shiite communities, which has been at its highest level since the U.S. troops pulled out from the country at the end of 2011. For five months, Sunni Muslims have been protesting against the Shiite-led government in Sunni provinces and the Sunni districts in Baghdad.