A senior US Congressman highly critical of the Afghan government is prevented from entering the country, in a development likely to strain ties with the US.

An internal White House probe finds no link between its staff and the Secret Service scandal in Colombia, President Obama's spokesman says.

Bahraini court postpones final verdict in the case of a hunger striker and 20 other democracy activists convicted of plotting to overthrow the kingdom's rulers.

The US embassy in Kenya issues a terror warning to US nationals in the country, warning of a possible attack on hotels and government buildings in Nairobi.

Amadou Toumani Toure, ousted as Mali's leader in last month's coup, flees to Senegal, even though many of his allies are freed.

US retailing giant Wal-Mart is investigating allegations made in a New York Times article accusing its Mexican subsidiary of bribery.

Intel unveils 13 Ivy Bridge chips, promising more processing power and less energy use to help it head off Arm and AMD's challenges.

More than two tonnes of cocaine and drug-making equipment believed to belong to Farc rebels are seized in southern Colombia, the army says.