The United States is offering a reward for information on Hamza bin Laden, thought to be about 30-years-old and based near the Afghan-Pakistan border, of $1 million.

The State Department’s Counter-Terrorism Rewards Program posted the reward on its website late Thursday. “He has released audio and video messages on the Internet, calling on his followers to launch attacks against the United States and its Western allies, and he has threatened attacks against the United States in revenge for the May 2011 killing of his father by U.S. military forces,” the State Department said.

Hamza bin Laden is married to the daughter of Mohammed Atta, the lead hijacker and a mastermind of al-Qaeda’s Sept. 11, 2001 attacks on the World Trade Center.