Species Scientists announce the discovery of more than 1,000 new species resulting from a 2006 survey conducted on Espiritu Santo island in Vanuatu.
Meningitis Cheaper new meningitis vaccinations reduce cases in Africa, with Burkina Faso, Mali and Niger recording the lowest number of cases.
United Kingdom House of Commons Voters in the UK parliamentary constituency of Belfast West go to the polls for a by-election to replace Gerry Adams, who is now serving in the Parliament of Ireland representing Louth.
Mapuche Four Mapuche activists give up a hunger strike after 86 days to protest their arrest under Chile's anti-terrorism laws.
Federal police The Australian Federal Police are called in to quell another riot at the Christmas Island Immigration Reception and Processing Centre.
Extradition Italy announces it is to sue Brazil at the International Court of Justice over this breach of their bilateral extradition treaty.
Italian communist militant Cesare Battisti is freed from jail in Brazil after the Brazilian Constitutional Court rules against extraditing him to face charges in Italy.
International Atomic Energy Agency The International Atomic Energy Agency votes to report Syria to the United Nations Security Council over its alleged covert nuclear programme.
People's Republic of China China denies claims by the United Nations that 300 Tibetan monks have forcibly disappeared over the past three months.
Nuclear disaster Shares in Tokyo Electric Power Company (TEPCO), the operator of the Fukushima Daiichi Nuclear Power Plant, fall to a record low due to continuing concerns over its viability and ongoing problems at the plant.
The Government of Japan submits a report to the International Atomic Energy Agency calling for revision of nuclear reactor design standards in the wake of the disaster.
U.S. Supreme Court The U.S. Supreme Court upholds a 2009 jury verdict in a patent dispute at the expense of software giant Microsoft in favor of Canadian company i4i.
Financial Times The "Financial Times" reports that computer hackers may have gained access to details of Citigroup bank card customer details.
2011 Yemeni uprising 2011 Yemeni uprising: President Ali Abdullah Saleh undergoes surgery in Saudi Arabia for injuries sustained in a bomb blast.
Afghanistan At least nine people die in Afghanistan after a gunman attacks a wedding party in the Dur Baba District of Nangarhar Province.
United States The United States intensifies air raids against suspected Al-Qaeda members in Yemen amid anti-government protests.
Government The Government of Somalia claims to have killed a Canadian member of the al-Shabab terrorist organization.
A video emerges appearing to show the torture of Thamer al-Sahri, a 15-year-old boy, by security forces.
The United Nations Security Council considers a resolution condemning the crackdown on Syrian protesters by security forces.