5 January 2012
Last updated at 12:49
Athletes compete in the first heat of the 1.3km free sprint semi-final of the sixth stage of the men's Nordic skiing Tour de Ski event in Toblach, South Tyrol, Italy.
Adrian Walls participates in the annual stock take at London Zoo. The count of more than 16,000 mammals, birds, fish, reptiles, invertebrates and amphibians is a compulsory part of the zoo licence renewal.
The remaining candidates vying for the US Republican presidential nomination have begun a week of campaigning ahead of the New Hampshire primary. Iowa loser Michele Bachmann dropped out of the race but Texas Governor Rick Perry vowed to fight on. Mrs Bachmann's exit leaves six men battling to take on Barack Obama.
A 70-year-old grandmother is 'rocking the house' in Warsaw. "DJ Wika Szmyt, 73, spends her retirement days behind a DJ console watching people dance to her rhythms. She plays disco, rumba or samba for a mostly elderly audience because she feels she is giving them a new take at life. DJ Wika plays in a Warsaw club three days a week," said Reuters news agency.
A traffic police motorcycle is set on fire during clashes at a rally in Chile. The rally was held to commemorate the anniversary of the death of Matias Catrileo, 22, a Mapuche Indian who died on 3 January 2008 after being shot during clashes with the police in a land dispute in southern Chile.
Fishmongers check large blue fin tunas before the first trading of the new year at Tokyo's Tsukiji fish market.
Egyptian voters are taking part in the third and final round of elections to the lower house of parliament. The country's complex parliamentary poll is taking place in three stages and over three months.
Participants write Japanese traditional calligraphy during the new year calligraphy contest in Tokyo, Japan.
Competitors dive into icy water during a winter swimming competition at Songhua River in Harbin, Heilongjiang province, China.
At least 25 people have been killed and 150 more are missing after a landslide struck a mining village in the southern Philippines, officials say. The landslide in Pantukan, Compostela Valley province, on Mindanao island, occurred at about 03:00 local time on Thursday morning (19:00 GMT Wednesday) .
Students protest in Colombo, Sri Lanka, calling on authorities to remove vice-chancellor NLA Karunaratne of the Sri Jayawardenapura University.