In one attack, an armed man opened fire on worshippers in a Shia mosque in Kabul, police said on Friday.
An Afghan police spokesman has raised the death toll from a suicide bombing at a Sunni mosque in western Ghor province to 33 killed, including a warlord who was apparently the target of the attack.
The mosque is located close to Pul-e-Khoshk Square in Dasht-e-Barchi in the west of Kabul City.
"We learned with sorrow that many were killed and more wounded in attacks at mosques in the Kabul and Ghor provinces of Afghanistan, today", the Foreign Ministry said in a statement.
Suicide bomber killed at least 30 people in a Shiite mosque in Kabul, capital of Afghanistan this evening, a security official said on Monday, reports BBC.
Afghan Shia population has been hit hard this year. But there were no immediate claims of responsibility for Friday's attacks. A further nine were injured, six are missing and two were not harmed.
The Taliban claimed responsibility for that attack, according to a statement from the group's spokesman, Qhari Yosouf Ahmadi.
He said the suicide bomber blew himself up among the worshippers.
The attacks cap one of the bloodiest weeks in Afghanistan in recent memory, with more than 120 people killed and hundreds more wounded in four separate Taliban attacks on police and military bases.