Sinking may be one of the worst migrant tragedies over the last year.
Niger extradited Saadi Gaddafi to face charges from 2011 uprising.
Aircraft carried medical patients going to Tunisia for treatment.
Women assaulted during 2011 will be recognized as war victims.
Tripoli committed to getting rid of all chemical arms by signing accord.
At least nine dead in another test of country's fledgling armed forces.
Abduction followed weekend clashes by rival militias that killed nearly 50 people in the city.
Tripoli residents protest militiamen attacks that killed nearly 50.
Soldiers and government-affiliated militias attempted to regain control of a Tripoli base occupied by armed gunmen.
Will face tribunal on charges ranging from murder and treason to looting.
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