At least 72 people have been killed in a suicide bombing at a shrine in southern Pakistan.

The blast happened at the famous Lal Shahbaz Qalandar shrine in the town of Sehwan Sharif.

More than 150 people are injured, and police say the death toll is likely to rise.

Islamic State has claimed responsibility for the attack. 

Reuters reported that Pakistani Prime Minister Nawaz Sharif condemned the attack, stating: "We can't let these events divide us, or scare us. We must stand united in this struggle for the Pakistani identity, and universal humanity."