BAGHDAD (AP) — Iraqi officials have raised the death toll from a car bombing in a commercial area in a predominantly Shiite neighborhood of Baghdad to at least 29 people killed.

Two police officers say the explosives-laden car that went off Wednesday morning at a crowded outdoor market in Baghdad's eastern district of Sadr City also wounded up to 50 people, several seriously.

There are fears the death toll will rise further.

Shortly after the explosion, the Sunni extremist Islamic State group, which sees Shiite Muslims as apostates, claimed responsibility for the attack in an online statement.

It says the assault was carried out by a suicide bomber, but Iraqi officials denied that.