Attacks across Iraq, including a spate of car bombs in Baghdad and the northern city of Mosul, killed 63 people Wednesday in the bloodiest violence to hit Iraq since April elections.

The worst of the blasts went off during the evening and left dozens of people wounded, fuelling fears a protracted surge in violence is pushing Iraq back into the brutal communal conflict that left tens of thousands dead in 2006 and 2007.

The bloodletting comes as political leaders jostle to build alliances and form a government, with Prime Minister Nuri al-Maliki in the driver’s seat in his bid for re-election but still short of an overall majority in parliament. […]