Hamza bin Laden, the son of the late Al Qaeda leader Osama bin Laden, has married the daughter of Mohammed Atta, the lead hijacker and one of the ringleaders of the September 2001 terror attacks in the US, according to the family.

The marriage was confirmed by Osama bin Laden's half-brothers -- Ahmad and Hassan al-Attas -- during an interview with the Guardian. "We have heard he has married the daughter of Mohammed Atta," Ahmad al-Attas told the daily. "We're not sure where he is, but it could be Afghanistan." The brothers said they believed Hamza had taken a senior position within Al Qaida and was aiming to avenge the death of his father who was shot dead during a US military raid in Pakistan's Abbottabad town on May 2, 2011.