BAGHDAD - Attacks mostly targeting Iraqi security forces north of Baghdad killed seven people, officials said, the latest in an uptick in nationwide violence. Near the main northern city of Mosul, gunmen killed two brothers - a policeman and a soldier - inside their home, according to officials. The soldier was a bodyguard for Iraqi parliament speaker Osama al-Nujaifi. Also close to Mosul, a roadside bomb targeting a police patrol killed two policemen and wounded one other. Even as unrest has declined nationwide from its peak in 2006 and 2007, Mosul and surrounding Nineveh province remain one of the most violent regions of the country on a per capita basis, according to the Iraq Body Count watchdog.