At least 29 people have been killed, and more than 100 injured, after an explosion struck a protest by ethnic Hazaras, in the Afghan capital, Kabul.
An explosion has ripped through a protest march in the Afghan capital, Kabul, killing at least 29 people and wounding more than 100, officials say.
The blast hit Deh Mazang square as thousands of people from the Hazara minority marched to demand changes to the route of a planned power line.
They are angry that the route bypasses areas with large Hazara populations.
The cause of the blast is unclear, although TV channel Tolo cited reports that a suicide bomber was behind it.
No-one has yet said they carried out the attack.
Taliban spokesperson Zabiullah Mujaheed sent an email to media condemning the attack and saying they were not behind it.