The highest reward of USD 7 million is offered for the Boko Haram leader Abubakar Shekau, who last week called on Islamists in Afghanistan, Pakistan and Iraq to join the bloody fight to create an Islamic state in Nigeria.
The US State Department's Rewards for Justice program also targeted Al-Qaeda in the Islamic Maghreb (AQIM), offering its first ever bounties for wanted militants in west Africa.
Up to USD 5 million was posted for Al-Qaeda veteran Mokhtar Belmokhtar, the one-eyed Islamist behind the devastating attack on an Algerian gas plant in January in which 37 foreigners, including three Americans, were killed.
Malik Abou Abdelkarim, a senior fighter with AQIM, and Oumar Ould Hamaha, the spokesman for Mali's Movement for Oneness and Jihad in West Africa (MUJAO), were also targeted by the rewards program, which will give up to USD 3 million each for information leading to their arrests.
"AQIM has been increasingly active in north and west Africa. They're one of the pre-eminent kidnap for ransom groups in the terrorist world right now," a senior State Department official told AFP, asking not to be named.