Afghan Taliban leader Mullah Akhtar Mansour has been seriously wounded in shooting at a meeting of militants in Pakistan, Taliban sources say.

Four Taliban gunmen were killed in the gunfight after an argument on the outskirts of Quetta, a source said.

Another report said Mullah Mansour died but this is unconfirmed. A Taliban spokesman denied the gunfight happened.

Mullah Mansour’s appointment prompted splits in the Taliban after its founder Mullah Omar’s death emerged in July.

A number of senior Taliban commanders refused to pledge allegiance to him and a faction opposed to him was set up last month under Mullah Mohammad Rasool.