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Students in Ghana launch a model of a satellite attached to a balloon for the first time.

Hundreds of birds and marine animals wash up on the Chilean coast, raising fears fishermen might be flouting a ban on blast fishing.

Tunisia bans the radical Islamist group Ansar al-Sharia from holding a meeting in the city of Kairouan, raising fears of possible violence.

India batsman Rahul Dravid is shocked after three of his Rajasthan Royals IPL stars are arrested over spot-fixing claims.

A Chinese man in Pakistani-administered Kashmir is taken into protective custody after he was accused of desecrating the Koran, officials say.

At a time of economic doom and gloom across much of Europe - the credit rating for Turkey has been upgraded.

Jose Mourinho and Cristiano Ronaldo are sent off as Real Madrid lose bad-tempered Copa del Rey final 2-1 to Atletico Madrid.

More than 60 people have died in attacks in and around Baghdad, apparently targeting Sunnis, in the worst day of violence in Iraq for months.

For the week ending 17 May, here is a look at the news making waves in America - all in 140 characters or less.

Argentina grapples with legacy of late military leader Videla

The mayor of the Canadian city of Toronto, Rob Ford, denies allegations that he has been caught on video smoking crack cocaine.

Stoke City are to investigate after reports that a pig's head was left in striker Kenwyne Jones's locker.

The latest international business headlines from BBC World News.

The inquest into the death of ex-KGB spy Alexander Litvinenko could be replaced by a form of public inquiry to allow evidence about Russia's alleged role in the killing to be heard in secret.

Senior US tax officials deny the extra scrutiny given to conservative political groups ahead of the 2012 election was motivated by partisan bias.

Air raids target a militant training camp in north-east Nigeria as a military plane is hit by anti-aircraft fire, officials say.

After years of conflict, it can be difficult to imagine the people of Mogadishu enjoying a nightlife.

Slovenia pushed by markets and voters to mend economy

A man accused of abducting and murdering five-year-old April Jones says it never occurred to him to ring 999 for help.

A car bomb attack has killed at least nine people at an elite complex in the southern Afghan city of Kandahar, officials say.