Somali pirate who attacked US ship 'should serve 34 years'

US federal prosecutors have asked a judge in New York City to sentence a Somali pirate to nearly 34 years in prison for an attack on a US-flagged ship off the coast of Africa.

Prosecutors said in a court filing that Abdiwali Abdigadir Muse led attacks on ships in the Indian Ocean for more than a month in 2009.