Gunmen have killed 20 people, including a traditional leader, in an attack on a village in northern Nigeria's Zamfara state, a local official has said.

Plans to let universities decide the content of A-level courses have been given a mixed reception by teachers and universities.

Education Secretary Michael Gove raised concerns that A-levels were failing to stretch pupils, in a letter to Ofqual, the exam regulator for England.

Colombia's Farc rebels have released their last 10 police and military hostages - some of whom have spent 14 years in captivity.

They were collected from the jungle by a Brazilian military helicopter and flown to safety.

Pope Benedict XVI has criticised the 50-year-old US trade embargo imposed on Cuba, as he ends a visit to the island.

The Pope called for greater rights in Cuba, saying he wanted a society in which no-one was denied basic freedoms.