A suicide bomber killed at least 22 people, including four children, in Pakistan's Sindh province on Friday during a Muharram procession by minority Shias. The attack, which wounded 40 others, came a day after 12 people were killed in a similar suicide bomb attack at a Shia mosque in Balochistan. No group has taken responsibility for Friday’s bombing, but a Sunni militant group called Lashkar-e-Jhangvi had owned up to Thursday's attack and threatened more violence against Shias.

Sectarian violence carried out by Sunni militants against the minority Shias has claimed thousands of lives in Pakistan over the past decade. On Monday, a bomb explosion on a bus killed at least 11 people in Balochistan's capital city Quetta, while 22 more were injured.

On Friday night, a series of bomb blasts in front of a Shia shrine in Bangladesh killed at least one person and injured around 90 others.