Police shoot dead a man believed to be the California quarry worker who gunned down three colleagues and wounded six others on Wednesday.

Protests against corporate influence in politics spread to Washington DC as unions step up support for demonstrators near Wall Street in New York.

Nigeria's anti-corruption agency arrests three former state governors for allegedly embezzling funds amounting to more than $600m (£387m).

Samsung Electronics forecasts a dip in profits for the third quarter as demand for flat-screen TVs and computer chips falls.

After 10 years in Afghanistan, the US still lacks the knowledge to bring the conflict to a successful end, retired Army Gen Stanley McChrystal says.

The US senate postpones its vote on the much-debated currency bill amid differences between the Republicans and Democrats.

The Bank of Japan extends its loan scheme for banks operating in areas affected by the earthquake and tsunami by six months.

Troops loyal to Libya's transitional government launch a major assault on the Gaddafi stronghold of Sirte, with sustained tank and mortar fire.