Two gunmen attacked a Sufi religious center in Kabul on Saturday evening, killing at least six civilians and wounding five others, according to Afghan authorities.
The Kabul police chief's office said the gunmen escaped and were still on the loose following the attack Saturday evening.
The interior ministry said the gunmen used pistols with silencers and attacked while people inside were busy praying. The ministry said five suspects have been arrested.
Sufism is the mystical branch of the Islam. Although civilians are frequently targeted with violence in Afghanistan, attacks on religious houses of worship are relatively rare.
Earlier in the day, Afghan President Ashraf Ghani inaugurated a new session of parliament, praising the country's security forces in his speech.
Ghani made an address on Saturday as parliament reconvened. He said insurgents who tried to take over several Afghan provinces had been defeated by soldiers and police officers.
Ghani also said that he soon will introduce more Cabinet nominees to the parliament for their approval. Some of Ghani's nominees for the 25 Cabinet positions already have been rejected by parliament, some voted down and others because they had dual citizenship or incomplete education documents.
The lack of ministers has caused problems throughout Ghani's government, slowing its work and upsetting many in the country. Ghani has pledged to resolve the Cabinet impasse soon.