Iraqi officials say a car bombing in a crowded commercial area in Baghdad has killed at least six civilians.

A police officer says the parked explosives-laden car detonated Monday afternoon in the eastern neighborhood of New Baghdad. At least 20 other civilians were wounded in that attack, he added.

A medical official confirmed the causality figure. All officials spoke on condition of anonymity as they were not authorized to release information.

No group has claimed responsibility for the attack, but it bore the hallmarks of the Islamic State group, which controls key areas in the country's west and north. Commercials and public places in Shiite-dominated areas are among the most frequent targets for the militants seeking to undermine government efforts to maintain security inside the capital.