A UN agency has reported a community mosque used by the Shia minority religious group in the northeastern Kunduz province of Afghanistan, being attacked by a suicide bomber. 100 worshippers have been killed in the Afghan mosque attack, injuring many.

While no responsibility has been claimed by any groups, many are calling it an incident of ethnic violence against the Shia community. The recent Afghan mosque attack has been followed by several other similar attacks out of which for some, the Sunni Muslim militants of the Islamic State have claimed responsibility.

The recent Afghan mosque bomb attack happened at the Gozar-e-Syed Abad Mosque, while a large number of worshippers gathered for Friday prayers. Taliban chief spokesperson Zabihullah Mujahid has acknowledged the attack in a tweet, commenting on how investigations are underway.

“This afternoon, an explosion took place in a mosque of our Shiite compatriots … as a result of which a number of our compatriots were martyred and wounded,” Zabiullah’s tweet read.

Commenting on the investigation of the Afghan mosque attack, Dost Muhammad Obaida, the deputy police chief for Kunduz province, said that majority of those affected are dead. “I assure our Shiite brothers that the Taliban are prepared to ensure their safety,” he added, regarding the investigation and measures for safety. He further commented on the bomber mingling in with the crowd as part of those worshipping at the mosque.

There has been a rise in attacks and instability in the political climate ever since the U.S. troops left the region for the Taliban to take over.