Mortar attack strikes former insurgent stronghold in Iraq, killing at least 15 people

Authorities in Iraq say a mortar attack has struck a residential area of a town south of Baghdad, killing at least 15 people and wounding more than 50.

The attack happened Thursday night in Musayyib, about 60 kilometers (40 miles) south of Baghdad.

A police officer and two medical officials say five mortars hit a market, a residential building and a parking lot. It wasn't immediately clear who fired the mortars.

The officials spoke on condition of anonymity as they weren't authorized to speak to journalists.

Musayyib is a former insurgent stronghold.

Iraq is experiencing a rise in violence to levels unseen since the worst of the country's sectarian bloodletting began to subside in 2008.