WASHINGTON - Pakistan was aware of increased US intelligence activity in the country weeks before the raid that killed Osama bin Laden in May, the CNN reported Saturday, citing an unnamed Arab diplomat with direct knowledge of the events and a senior Pakistani official. In a report, the network said the two sources offered slightly different versions of who knew what, when. The Arab diplomat was quoted as saying that Pakistan knew about the heightened intelligence activity, specifically in Abbottabad, but never, never had any idea the operation was about bin Laden. The diplomat was approached privately by a Pakistani to inquire about heightened US intelligence-gathering activities. He said it was assumed Pakistan was asking all Arab allies. Meanwhile, CNN said a senior Pakistani official, who was also not named, said Pakistan was indeed aware of 'heightened CIA activity in Pakistan in the weeks prior to the raid, but that the information officials had was not 'Abbottabad specific. If folks in Islamabad had been able to pinpoint Abbottabad, they would have done something about it, the official said. Relations between Pakistan and the United States have been increasingly strained since bin Laden was killed in a Navy SEAL raid in early May. Washington did not give advance notice to Pakistani officials about the raid on bin Ladens compound in Abbottabad. Senior US officials also claim that some in Pakistan helped bin Laden live there. CIA Director Leon Panetta reportedly had told legislators that Pakistan was either involved in helping the worlds most-wanted fugitive avoid detection or was incompetent for not knowing he was living on Pakistani soil. The Arab diplomat said he is sure officials in Pakistan 'had no idea where bin Laden was. He also said it was always clear Zawahiri was going to replace bin Laden, referring to Ayman al-Zawahiri, the long-time deputy to bin Laden who has taken over leadership of Al-Qaeda. Its not in their culture to go with someone else. They (Al-Qaeda) value loyalty, the diplomat said.