Earlier, he stated that the blast was caused by a suicide bomber.
A suicide bomber killed 63 people and wounded 182 in an attack on a packed wedding reception in the Afghan capital on Saturday night, the interior ministry said, as violence shows no sign of easing despite hopes for a deal on a US troop withdrawal.
At approximately 10:40 p.m. local time on Saturday evening, a suicide bomber detonated an explosive in a wedding hall in Kabul, Afghanistan.
The attack came as the Taliban and the United States are trying to negotiate an agreement on the withdrawal of US forces in exchange for a Taliban commitment on security and peace talks with Afghanistan's USA -backed government.
The attack comes after peace talks in Doha between the Taliban and the United States, there has been speculation of a deal to be made soon.
A sharply worded Taliban statement questioned why the United States failed to identify the attacker in advance.
A Taliban spokesman said the group "strongly condemned" the attack.
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About 14,000 U.S. troops remain in Afghanistan, training and advising Afghan security forces and conducting counter-insurgency operations.
The issue also goes to the heart of a prospective deal between the USA and the Taliban that would see Washington begin to withdraw its approximately 14,000 soldiers from Afghanistan. "May God protect us". Chinese Special Envoy for Afghanistan Ambassador Deng Xijun met Afghan Foreign Minister Salahuddin Rabbani in Kabul on Sunday and discussed offer to host the intra-Afghan dialogue, the Afghan foreign ministry said.
He was drained after a day of burying the dead, which included the 8-year-old brother of the bride. Mourners helped dig the graves by hand.
Images from inside the hall showed blood-stained bodies on the ground along with pieces of flesh and torn clothes, hats, sandals and bottles of mineral water. "It was like a nightmare".
Afghans bury the bodies of victims of the Dubai City wedding hall bombing during a mass funeral in Kabul, Afghanistan, Sunday, Aug.18, 2019.
However, according to CNN, the area in Kabul in which the bombing took place is populated by many in the Shiite Hazara minority, and the Islamic State, a Sunni terrorist organization, has claimed responsibility for the attack. He and his bride survived the blast.
The Islamic State group's Afghan branch has claimed responsibility for the bombing in Kabul.
Past year was the deadliest for Afghans since the United Nations began counting casualties a decade ago, with nearly 4,000 civilians killed and more than 7,000 wounded - mostly in attacks by the Taliban and Islamic State. This year has seen a surge in deaths and injuries caused by pro-government forces, largely because of USA airstrikes, the United Nations has found.More news: WatchOS 6 Spots New Ceramic and Titanium Apple Watch models
Afghan government officials also fear that a Taliban pact could drive some die-hard Taliban fighters into the arms of Islamic State.
Ghani did not refer in his speech to negotiations between the United States and the Afghan Taliban on a deal by which U.S. troops can withdraw in exchange for Taliban security guarantees.
The blast follows a bomb attack on a mosque in Pakistan on Friday that killed a brother of Taliban leader Haibatullah Akhundzada.
But the peace talks have faltered, mostly because the Taliban refuses to engage with Ghani's government.
The Afghan government has not been involved in the talks because the militants refuse to deal with an administration they see as a USA puppet.
Experts say those talks could collapse or drag on for years, threatening the durability of the Afghan army and further emboldening militants.
"A U.S. -Taliban agreement does not end fighting in Afghanistan, and in fact the fighting could get very nasty", said Vanda Felbab-Brown, an analyst at the Brookings Institution. That process is already underway in parts of northern and eastern Afghanistan, where the Taliban have attacked IS only to lose territory and fighters to the rival extremist group.More news: Ryanair makes high court attempt to stop pilot strikes
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