Afghan President, Ashraf Ghani, has promised to “bury” the Islamic State militant group (ISIS), whose local offshoot has clashed with government forces and Taliban fighters.

Speaking at the World Economic Forum in Davos Switzerland, Mr Ghani, said that ISIS was “not an Afghan phenomenon” and that its atrocities had “alienated the people”.

Mr Ghani also called for anti-ISIS action at regional and international level.

“A lot of my diplomacy has been to create the regional consensus, and a region with the inheritance of previous animosities and short-sighted behaviour is something that is going to require effort and focus,” he said.

The Pentagon authorised its troops in Afghanistan to fight ISIS last week after it was designated as a terrorist organisation by the US State Department and a threat to the US, the BBC reports.

The Taliban movement has also declared its own war with ISIS and members of both groups have engaged in clashes in different parts of the country since ISIS was formed there in January last year.

The US State Department said last week that it had designated the ISIS offshoot in Afghanistan as a terrorist organisation.

It said the group was made up of former members of the Pakistani Taliban and Afghan Taliban.