Washington, Oct 6 (PTI): Talking tough, Afghanistan has alleged Pakistan had advance knowledge of the plot to assassinate former president Burhanuddin Rabbani and said Islamabad was refusing to cooperate in probing the crime.

Afghan officials have also said that they have handed over satellite images of houses of top leaders of the Taliban in the capital of Balochistan , Quetta, but Pakistani security forces were not taking action against them, New York Times reported.

"If Pakistan does not help in investigations, Afghanistan will appeal to the United Nations to get involved," the Times reported, quoting a senior Afghan official, Dr Zia.

The paper, quoting sources in Kabul, said the assassin gained entry to Rabbani's home by claiming to be a peace emissary from the Quetta shura, the supreme council which runs Taliban.

The Afghan official said that the sophistication of the bomb hidden inside the assassin's turban pointed to a link with Pakistan.

He also said that video report of the confession of the suspected mastermind Hamidullah Akhundzadeh was also handed over to Pakistani authorities, who had dismissed it offhand. Zia said Akhundzadeh talks of meeting members of the Afghan peace council in Kabul and then in Quetta to brief Taliban leaders. Later, he accompanied the bomber, a Pakistani named Esmatullah, on a bus trip back to Kabul.