BAGHDAD (AFP) - A wave of car bombs struck Shi'ite-majority areas of Baghdad on Saturday, killing at least 31 people, security and medical officials said.

The six car bombs, which hit five different areas of the Iraqi capital, also wounded more than 90 people.

The deadliest single attack struck Sinaa Street in Baghdad's central Karrada district, killing at least 10.

Baghdad is hit by near-daily bombings and shootings, some of which have been claimed by the Islamic State (IS) militant group, which has overrun large parts of the country since June.

IS and other Sunni extremist groups consider Shi'ites to be heretics and frequently target them in attacks.