KABUL • The Islamic State in Iraq and Syria (ISIS) group claimed responsibility for twin explosions yesterday that ripped through crowds of Shi'ite Hazaras in Kabul, killing at least 80 people and wounding 231 others in apparently their deadliest attack in the Afghan capital.
The bombings, during a huge protest over a power transmission line, could deepen sectarian divisions in a country well known for communal harmony despite decades of war.
The scene of the attack was littered with charred bodies and dismembered limbs, with ambulances struggling to reach the scene as authorities had overnight blocked key intersections with stacked shipping containers to impede movement of the protesters.
Health ministry spokesman Mohammad Ismail Kawoosi said the death toll could rise further.
The wounded overwhelmed city hospitals, officials said, with reports emerging of blood shortages and urgent appeals for donors circulating on social media.
The Taleban, who is in the middle of their annual summer offensive and are more powerful than the ISIS group, strongly denied any involvement in the attack.
It appears to be the single deadliest attack in Kabul to be claimed by ISIS militants, who are making steady inroads in the country, challenging the Taleban on their own turf.
The attack came as thousands of demonstrators gathered to demand that a multimillion-dollar power line pass through their electricity-starved province of Bamiyan, one of the most deprived areas of Afghanistan with a large Hazara population.
"The horrific attack on a group of peaceful protesters in Kabul demonstrates the utter disregard that armed groups have for human life," Amnesty International said in a statement.
"Such attacks are a reminder that the conflict in Afghanistan is not winding down, as some believe, but escalating, with consequences for the human rights situation in the country that should alarm us all."
In a statement, Afghan President Ashraf Ghani said he was "deeply saddened" by the carnage, adding that the casualties included security officials.
"Holding protests is the right of every citizen of Afghanistan and the government puts all efforts to provide security for the protesters, but terrorists entered the protests, and carried out explosions that martyred and wounded a number of citizens including members of security forces," the presidential palace said.
The protest march was largely peaceful, before the explosions struck, as demonstrators sought to march on the presidential palace, waving flags and chanting slogans such as "death to discrimination".
The 500-kilovolt Tutap power line, which would connect the Central Asian nations of Turkmenistan, Uzbekistan and Tajikistan with electricity-hungry Afghanistan and Pakistan, was originally set to pass through the central province.
But the government rerouted it through the mountainous Salang Pass north of Kabul, saying the shorter route would speed up the project and save millions of dollars.
Hazara leaders lashed out at the Pashtun President, calling the decision prejudiced against the Hazaras, a community that has suffered a long history of oppression.