His father is believed to be hiding in the Pakistan's mountainous region near the Afghan border.

McConnell had also said that the son had played a role in some terrorist attacks.

The CIA is known to fly unmanned Predator airplanes armed with Hellfire missiles into Pakistani airspace to target Al Qaeda and the Taliban.

Saad bin Laden is believed to have fled Afghanistan during the US-led invasion in 2001 and sought refuge in Iran.