Mogadishu - Somalia's government has issued bounties for 11 top leaders of the al-Qaeda-linked al-Shabaab militants, with $250 000 offered for the extremist's chief, Ahmad Umar.
Other rewards include $150 000 for the capture of Mahad Karate who runs the Amniyat, a special internal security wing that deals in intelligence and assassinations.
The al-Shabaab are fighting to overthrow Somalia's internationally-backed government, but have also carried out a string of revenge attacks in neighbouring nations, including Kenya, where the extremists massacred 148 people last week in Garissa university.
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Umar, also known as Abu Ubaidah, has led the movement since Ahmed Abdi Godane was killed by a US air strike in September.
The militant group has suffered a string of setbacks, losing territory in battles with regional forces and top leaders to drone missile strikes.
Rewards of $100 000 are offered for the capture of nine others, including al-Shabaab spokesperson Sheikh Ali Mohamud Rage.
Other nations have also issued rewards for information on al-Shabaab commanders, with Washington offering cash rewards of up to $5m including for three al-Shabaab commanders.
Kenya has offered $215 000 for alleged al-Shabaab commander Mohamed Mohamud, a former Kenyan teacher believed to now be in Somalia and said to be the mastermind behind the Garissa attack.