Locals said that the blast was caused by an Improvised Explosive Device (IED) planted in a mosque during prayers at the Shadal Mosque in eastern Nangarhar, Pajhwok Afghan News reported citing a source. Three of the people injured in the blast are in critical condition, Syed Qayum Shinwari, a resident of the area, told Pajhwok Afghan News.

The developments came days after three people were killed and several others sustained injuries in twin blasts in the capital of Nangarhar province.

Meanwhile, Two armed men on Friday killed one person and injured another in an attack in the capital of the northern Kunduz province in Afghanistan.

The armed men attacked shop owners in Kunduz city on Friday, killing one on the spot and injuring another, Xinhua news agency reported citing locals. A provincial government official has confirmed the incident, saying a probe has been initiated into the case.

Separately, another blast was reported in Nangarhar province on Friday, Pajhwok Afghan News reported citing a source

Two explosions went off in Jalalabad city in Nangarhar followed by a shooting incident, Russian news agency Sputnik reported citing an eyewitness on Sunday.