Eleven militants have been killed and 21 others captured in different operations across Afghanistan within the last 24 hours, said the country's Interior Ministry on Sunday.

"Afghan National Security Forces (ANSF) conducted several cleanup operations in Nimroz, Helmand, Herat, Paktiya, Khost and Laghman provinces. As a result seven armed Taliban were killed, five wounded and 18 other armed Taliban were arrested by the ANSF over the last 24 hours," the ministry said in a press statement.

In addition, four militants were killed, three detained and five others injured when Afghan police and army conducted an operation in the country's northern province of Sari Pul overnight, the deputy provincial police chief Sakhi Daad Haidari told Xinhua.

The Taliban insurgent group, which has intensified attacks since they launched annual spring offensive in April, is yet to make comments.