KABUL — At least 10 people were killed and 20 others wounded after an explosion ripped through a mosque in the Afghan capital of Kabul on Friday, officials and eyewitnesses said.

"The initial reports found that 10 people were killed and 20 wounded. The number of the killed and wounded may change as the casualties were transported to multiple hospitals," Abdul Nafeh, a spokesman of the Interior Ministry said.

"The blast occurred roughly at 3:45 p.m. (local time), more than one hour after Friday prayers. The worshippers in Khalifa Sahib Mosque in Sera-e-Allawoddin area of Karta-e-Sah locality were the apparent target of the blast. The nature of the blast has not been determined. It could be a suicide bomb blast," witness said.

The attack came when a group of worshippers were making a ritual prayer in observing the Islamic holy month of Ramadan. The neighborhood is located in Police District 6 in the western part of the city.

The Taliban security forces have cordoned off the area for precautionary measures. No group has claimed responsibility for the attack yet.

In recent weeks the war-torn country has been hit by a series of terror attacks reportedly staged by militants of the Islamic State (IS) group opposing Afghanistan's Taliban-led caretaker government.

Two explosions targeting two buses in northern Mazar-i-Sharif city left 11 people dead and 17 others wounded on Thursday evening, the Tolo News TV reported.

According to the report, the IS group claimed responsibility for the Mazar-i-Sharif blasts. — Agencies