The Islamic State group is claiming responsibility for the Baghdad mall attack that killed 18 people on Monday. Gunmen stormed into a Baghdad mall after setting off a car bomb and launching a suicide attack at its entrance.

Iraqi officials say the attack which lasted over an hour killed at least 18 people and wounded 50 in the city's mainly Shia east.

The ISIS statement, posted online shortly after the attack, said four ISIS fighters carried it out and warned of "worse" to come. Iraqi officials say the attack was carried out by seven men. The conflicting accounts could not immediately be reconciled.