The family of Abdul Aziz Mofleh, the imam of Sher Shah Suri Mosque in the west of Kabul who lost his life in an explosion in his mosque on Friday, said the incident requires a proper investigation. Otherwise, the government will be blamed for the attack, they said.

The attack was the second mosque attack in less than two weeks in Kabul.

A guard at the mosque, Sifullah, said three people who had a connection with the incident were taken into custody by the security forces.

“Three of us are in the custody of the National Directorate of Security for investigations,” he said.

The attack left four people, including the imam, dead.

“According to Imam Ghazali, government leaders could be considered responsible for the death of a person whose murderer cannot be found,” said Mohammad Sarwar, son of Mawlawi Mofleh.

“The government should find the murderers. They killed (Mohammad Ayaz) Niazi and Mofleh and tomorrow they will kill another,” said Qalandar Bek, a relative of the imam.

The Ministry of Interior Affairs sees theTaliban’s hand behind the attack.

“(The attack on) the Sher Shah Suri Mosque and religious scholars is part of crimes by terrorists for which the Taliban have created a bigger umbrella for them,” said Tariq Arian, spokesman for the Ministry of Interior Affairs.

The Taliban has denied involvement in the attack and has condemned it in a statement. 

But the outgoing German ambassador in Kabul, Peter Prugel, said "It needs to be stigmatized; it needs to be made clear.. that the terrorism is not in line with Islamic belief. So, I think it needs more,” he told TOLOnews.

The attack happened during Friday prayers in Kabul on June 12.