A wave of attacks across Iraq, including a twin car bombing in the country’s north, killed at least 20 people, officials said.  Wednesday’s violence, which struck in and around Baghdad, as well as in Salaheddin and Kirkuk provinces also wounded at least 50 people. No group immediately claimed responsibilty for the attacks, but Sunni fighters have frequently detonated bombs in the disputed northern territory.  Two people were killed when a suicide bomber set off a truck bomb in Suleiman Bek, while a corpse booby-trapped with explosives killed a policeman in nearby Tuz Khurmatu. Both towns, like Kirkuk, lie in the disputed territory, which stretches from Iraq’s border with Iran to its frontier with Syria. In the adjoining province of Salaheddin, two separate bombings left a policeman and a soldier dead. And in Baghdad, a car bomb killed four people in a shopping area of the Sunni-majority northern neighbourhood of Saba […]