A series of car bombs exploded in mainly Shia neighbourhoods across the Iraqi capital Baghdad, killing at least 26 people and wounding dozens more.

The bombs detonated in Sadr City, Habibiya, Qahira, and at least two other districts of the capital.

Bombings have increased since the start of the year with a wave of suicide attacks against Shia targets and security forces.

Sunni Islamist insurgents have stepped up their campaign to revive widespread sectarian violence in Iraq.

A suicide bomber killed a top Iraqi army intelligence officer yesterday after storming his home near Mosul.