US President Barack Obama has forcefully attacked his Republican challenger Mitt Romney, in their third and final presidential debate.

A Briton seized in a raid in Kenya, in which her husband was killed, has been freed after six months held in Somalia.

Judith Tebbutt, 56, is being flown to Nairobi after a ransom, raised by her relatives, was paid for her release.

Burma is inviting the United States and the European Union to send observers for its April elections, a spokesman for the US embassy in Rangoon has said.

The move follows an earlier invitation to the Association of Southeast Asian Nations (Asean) on Tuesday.

About six people have been killed in Somalia after mortars landed on a refugee camp near the presidential palace in Mogadishu, officials say.

A family of four were among those killed, a witness told the AFP news agency.

Colombian President Juan Manuel Santos says Cuba will not be invited to the Americas Summit in Colombia next month.

Some nations had been threatening to boycott the meeting in Cartagena unless Cuba was admitted.

A Pakistani doctor accused by his country of being a willing pawn in the CIA's hunt for Osama Bin Laden should be hit with a charge of high treason, a government panel announced Thursday.

The new pope of Egypt's Coptic Christian church has been formally enthroned in Cairo.

The head of Argentina's navy has been replaced following the seizure in West Africa of a naval training ship and its 300 crew amid a debt dispute.