The secretary general of the Lebanese resistance movement Hezbollah has condemned the recent IS terrorist attack on a Shiite mosque in the Afghan city of Kunduz.

Sayyed Hassan Nasrallah said in a televised address in Beirut on Monday that “the Wahhabi terrorist organization” committed this horrific act, while the U.S. “bears responsibility for it.”

“The U.S. government and the CIA, as well as all those who support IS, are responsible for the blood spilled,” Nasrallah said.

“Figures and information released before the U.S. withdrawal from Afghanistan point to Washington’s role in transferring IS terrorists from Iraq and the east bank of the Euphrates to Afghanistan,” the Hezbollah secretary general continued.

“Today, IS has set itself the task of creating a state of internal tension that will lead to a civil war in Afghanistan,” Nasrallah said. He called on the current authorities in Afghanistan to protect citizens regardless of their religion or ethnicity.

At noon on Friday, a suicide bomber detonated his explosive vest at a Shiite mosque in the Khan Abad district of Kunduz province, killing and injuring dozens of worshippers. The terrorist attack occurred during Friday prayers at the mosque.

According to reports, more than 50 people were killed and 100 others were injured in the blast. The IS terrorist militia claimed responsibility for the attack.