Give information on group leader Abu Ubaidah and get $6m reward
The US government is offering $27m in rewards for information on the whereabouts of six leaders of the Somalia-based Al-Shabaab group.
The highest reward is $6m for the group's leader Abu Ubaidah.
He replaced Ahmed Abdi Godane, who was killed in a US drone strike last year.
Among those being hunted is Mahad Karate, also known as Abdirahman Mohamed Warsame, believed to be a key player in the attack on a Kenyan university which killed 148 people.
The Islamist militant group is battling the UN-backed government in Somalia.
The rewards