The World Bank warns that a "historic" jump in the cost of key food crops, such as wheat and corn, will increase pressure on the world's poorest.

Ghana's ruling party chooses John Mahama, who took over as president last month after the death of his predecessor, as their candidate for December's polls.

A US court rejects a Texas law requiring voters to have photo identification, arguing it imposes "strict, unforgiving burdens on the poor".

The UN Security Council discusses Turkey's demand for refugee camps inside Syria but admits the issue raises "serious questions".

The Electoral Court in Mexico is meeting to issue a ruling on the disputed result of July's presidential election.

As many as 125 students at Harvard University are under investigation for allegedly helping each other cheat in an exam, officials say.

Mitt Romney will pledge to "restore the promise of America" in a much-awaited speech to the Republican convention in Florida.

The Pentagon says it may take legal action against an ex-US special forces member who has written a book about the raid that killed Osama Bin Laden.