Argentina train crash 'kills 49'
A commuter train crash at a station in the Argentine capital, Buenos Aires, kills 49 people and leaves at least 600 injured, officials say.
Western journalists die in Homs
American Marie Colvin of the UK's Sunday Times and French photographer Remi Ochlik are among 60 people killed as Syria steps up its clampdown.
Somalia militants lose key town
Ethiopian and Somali troops capture Baidoa, a strategic stronghold of al-Shabab Islamist militants, as the UN approves extra African Union troops for Somalia.
US dismay at IAEA Iranian visit
The White House expresses disappointment on the barring of UN nuclear inspectors from a site in Iran, calling the visit a "failure" for Tehran.
Karzai urges calm over Koran row
Afghan President Hamid Karzai urges Afghans "not to resort to violence" after protests over the burning of the Koran at a US airbase near Kabul.
EU court to rule on Acta legality
A controversial anti-piracy agreement is to be referred to the EU's highest court due to concerns surrounding internet freedoms.
Male extinction theory challenged
A new study comparing chromosomes in humans and rhesus monkeys suggests genetic decay of the male sex chromosome has all but ended.
Obama seeks US corporate tax cut
US President Barack Obama proposes a cut in corporate tax and an end to tax loopholes, as part of his election-year strategy on the economy.
Strauss-Kahn released by police
Former IMF head Dominique Strauss-Kahn is released after two days of questioning over an alleged prostitution ring but will be quizzed again next month.
More bodies from Concordia found
Search teams in Italy find eight more bodies in the wreck of the cruise ship Costa Concordia which capsized on 13 January as the inquiry spreads.
Time link to sudden cardiac death
How the time of day can increase the risk of dying from an irregular heartbeat has been identified by researchers.
VIDEO: Protests spread over Koran burning
At least six people have been killed and dozens injured in Afghanistan after protests spread over the burning of copies of the Koran at a US airbase.
VIDEO: President Obama sings the blues
To mark America's Black History Month, a blues concert called 'Red White And Blues' was held at the Whitehouse, featuring Mick Jagger and B.B. King.
VIDEO: Russians hold pre-election protests
Opposition activists in Russia are protesting against the results of the Russian presidential election before the first votes have even been cast.
HP sales fall short of forecasts
Computer firm Hewlett-Packard sees a drop in first-quarter sales, as it attempts to turn itself around under new chief executive Meg Whitman.
Peugeot boosted by alliance talks
Peugeot shares jump 12% after the carmaker confirms it is in talks about possible "co-operations and alliances".
Million homes 'need TV filters'
Filters will need to be installed in almost a million UK homes to combat TV interference likely to occur from new 4G mobile services.
Pirate Bay vows to go underground
File-sharing site Pirate Bay vows to carry on after the High Court lays the foundations for its closure.
Brit ratings 'biggest since 2005'
The average audience to have watched the Brits ceremony on ITV1 and catch-up channel ITV1+1 comes in at 6.2 million - the event's highest audience since 2005.
Leguizamo to play Del Boy in US
Actor John Leguizamo, known for films such as Moulin Rouge and Carlito's Way, is to play Del Boy in the US remake of Only Fools And Horses.
Path of tsunami debris mapped out
A year on, modellers continue to provide daily forecasts of the likely spread of floating debris washed out into the Pacific by the Japanese Tohoku megatsunami.
Distant 'water-world' confirmed
Astronomers confirm the existence of a new class of planet - a "water-world" with a thick, steamy atmosphere.
Heart symptoms 'differ in women'
Fewer women than men suffering from a heart attack appear to experience chest pain symptoms, according to a study in the US.
Germany criticised for castration
Europe's top human rights watchdog, the Council of Europe, urges Germany to end the practice of surgically castrating sex offenders.
Man City 4-0 FC Porto (6-1 agg)
Sergio Aguero stars as Manchester City go through to the last 16 of the Europa League 6-1 on aggregate with an emphatic 4-0 second leg win over the defending champions.
McDowell out of World Match Play
Northern Ireland's Graeme McDowell is beaten in the World Match Play Championship's first round by South Korea's YE Yang.
Munch's The Scream to go on sale
Edvard Munch's famous masterpiece The Scream is to be sold at auction in New York, Sotheby's announces.
London-themed Rio carnival troupe
How a British-themed dance troupe brought a flavour of London to the Rio de Janeiro carnival, in Brazil.
South Sudan expels oil firm boss
South Sudan expels the head of a Chinese and Malaysian-owned oil firm following its investigation into Khartoum's "theft" of oil worth $815m (£518m).
Australia FM Kevin Rudd resigns
Australia's Foreign Minister Kevin Rudd resigns amid widespread reports of a leadership tussle between him and Prime Minister Julia Gillard.
Court blow for French far right
France's top court rejects a request by far right candidate Marine Le Pen to grant her supporters anonymity as she struggles to secure her place in the election.
Chile-Peru border mine scare ends
Chile reopens its main border crossing with Peru after closing it earlier this week when rain washed landmines onto the road.
Verdict on Mubarak set for 2 June
A trial verdict for Egyptian ex-President Hosni Mubarak, accused of ordering the killing of protesters in the revolution that ousted him, is set for 2 June.
US rivals set for Arizona debate
The four Republican candidates prepare to spar in a crucial TV debate days ahead of two key primaries in the US states of Arizona and Michigan.
Vicar and teacher murder charges
A man is charged with murdering a clergyman at his South Gloucestershire vicarage and a retired teacher in Worcestershire.
Comic Frank Carson dies aged 85
Northern Irish comedian Frank Carson, whose catch phrases included "It's a cracker", has died aged 85, surrounded by his family.
Tributes to reporter Marie Colvin
Tributes pour in for Sunday Times foreign correspondent Marie Colvin, who has been killed in Syria.
NHS 'will be Cameron's poll tax'
Labour leader Ed Miliband tells David Cameron he risks making NHS reform "his poll tax" - in noisy Commons clashes over the health bill.