Michael Dell has spent another $100m buying shares in the company he founded.

A noble, Lord Tu'ivakano, is elected the new prime minister of Tonga, a month after the country got its first popularly-elected parliament.

Russian President Dimitry Medvedev is expected to sign nuclear and defence deals worth billions of dollars during a two-day visit to India.

The Venezuelan parliament votes for a law which will tighten the country's rules regulating internet content.

The full impact of an alien species on an area's habitat may not come to light until decades after its intentional introduction, a report warns.

Antonio Trillanes, a leader of a 2003 coup attempt in the Philippines - who was elected senator while in prison - leaves jail promising to support President Benigno Aquino.

Snow, ice and freezing temperatures have stranded tens of thousands of travellers across northern Europe ahead of the Christmas break.

Unofficial US envoy Bill Richardson says North Korea is moving in the right direction, after a "positive" visit to Pyongyang.