Kabul suicide bomber kills 20 in 'unprecedented' shrine attack

A suicide bomber has killed at least 20 people outside a shrine in Kabul during an unprecedented wave of violence against minority Shiites in Afghanistan.

The attacker blew himself up in the midst of a crowd of men, women and children gathered outside the Abul Fazl shrine on a holy day to commemorate the seventh century death of the Prophet Mohammed’s grandson Imam Hussein.