Two cousins are charged with negligently setting the largest wildfire in Arizona history, which officials say started at their unattended campfire.

Saudi officials say archaeologists are excavating a site that suggests horses were domesticated 9,000 years ago in the Arabian Peninsula.

Google agrees to pay $500m (£305m) to settle accusations it allowed online Canadian pharmacies to advertise drugs to Americans via its search engine.

Steve Jobs resigns as chief executive at Apple and will be replaced by the firm's chief operating officer Tim Cook.

Libyan rebels announce an amnesty and million-dollar reward for anyone within Col Muammar Gaddafi's "inner circle" who captures or kills him.

The UN urges governments to do more to help groups of stateless people, who are discriminated against as they live without a nationality.

African leaders are to meet in Ethiopia's capital, Addis Ababa, for a delayed summit to pledge funds for the famine gripping the Horn of Africa.

Apple's Asian rivals see their share price climb after founder Steve Jobs resigns as the tech firm's chief executive officer.