At least 45 Shiite pilgrims were killed and another 170 injured in twin suicide bombings Thursday near the holy city of Karbala, al-Jazeera reports.
A militant blew up his vehicle in a separate attack in Baquba near the provincial headquarters in Diyala province. On Tuesday, around 60 people died when a suicide bomber set off an explosive device at a police recruiting station in Tikrit, the hometown of Saddam Hussein in Iraq's Salah ad-Din province.
Iraqiya in a statement condemned what it described as the "cowardly" act of terrorists in the country.
"This attack illustrates the lack of security in the country and we call upon the government to truly participate in partnership and step up their security efforts as it is their duty to protect the lives of the citizens," the slate declared in a statement.
The overall level of violence has subsided in Iraq after more than seven years of war. The new government, announced late last year, is still struggling to fill many key Cabinet positions, however.
Alistair Burt, the British minister for the Middle East, said of the Tikrit attacks that London was "appalled" by the violence in Iraq.
"We will continue to urge the Iraqi government to deal appropriately with those found responsible for these crimes and provide adequate protection for all of its citizens," he said in a statement.
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