"The mother of a teenage alleged pirate held over the hostage-taking of a US sea captain this month has appealed to US President Barack Obama to free him.
"Adar Abdurahman Hassan told the BBC her son, Abde Wale Abdul Kadhir Muse, was innocent and just 16 years old.
"He was held over the seizure off Somalia of Richard Phillips, captain of the Maersk Alabama cargo ship.
"While her son was allegedly negotiating on a US warship, naval snipers shot dead three pirates holding the captain."