HP sues Autonomy co-founder Mike Lynch and ex-finance officer Sushovan Hussain, as Autonomy's former management says it will launch a counter-claim.
The Dutch royal family says it will return a painting believed to have been confiscated from Jewish owners during World War Two.
Opposition candidate Muhammadu Buhari is on the verge of a historic victory over Nigerian President Goodluck Jonathan, with most votes counted.
The Shibuya ward in Tokyo has become the first place in Japan to recognise same-sex partnerships.
Club and international games at Windsor Park, Belfast could be in doubt because of possible subsidence in the West Stand.
Iraqi forces have made major advances against Islamic State (IS) in Tikrit - retaking the government headquarters, officials say.
A huge power cut hits several cities in Turkey, including Istanbul's public transport network.
The English National Opera is up for a Royal Philharmonic Society award, while there are double nominations for the Oxford Lieder Festival, the Royal Opera House and the Arditti Quartet.
Farms vie for market share as EU milk quotas go
Former Conservative Party treasurer Lord Ashcroft says he is quitting the House of Lords.
All 150 victims of the Germanwings crash will be identified by the end of the week, the French President Francois Hollande says.
The UN's human rights chief warns Yemen is "on the verge of total collapse", as Saudi-led coalition aircraft bombard Houthi rebels.
Taiwan and Norway join 40 nations to sign up to the new Asian Infrastructure Investment Bank, but Japan has yet to decide whether to join.
Arizona's governor vetoes a bill that would have required the names of officers involved in shootings to be kept secret for 60 days.
A new film is trying to raise awareness of the plight of albinos in Tanzania and Malawi.
Residents of Buenos Aires woke up to empty streets on Tuesday as a one-day strike by transportation workers began.
The US has pledged to tackle climate change by cutting its carbon emissions 26-28% by 2025.
The governor of the US state of Indiana strongly defends a contentious religious freedom law, amid a backlash from gay rights supporters.
Praesa, a reading project aimed at children and young people in South Africa, is named the winner of the 2015 Astrid Lindgren Memorial Award.
An additional $300m is being put aside to deal with possible costs arising from the Germanwings plane crash, Lufthansa officials say.