Barack Obama

Fake tweet claimed President Obama injured in bomb blasts at White House, raising fresh concerns over Twitter security.

Lethal nerve agent used by Assad's troops against rebels.

As Dzhokhar Tsarnaev lies critical in hospital, initial reports indicate the suspect does not have a terrorist link.

Parents say sons Dzhokhar and Tamerlan Tsarnaev were set up by the FBI, which has admitted interviewing the elder brother in 2011.

Families deserve answers says president, after capture of second suspect Dzhokhar Tsarnaev.

Dzhokhar Tsarnaev and Tamerlan Tsarnaev have Chechen connections, but are they relevant to the bombing?

Dzhokhar Tsarnaev, teenage suspect in Boston marathon bombings, was hiding in a boat parked in a homeowner's backyard in Watertown.

The US House of Representatives has passed the controversial CISPA bill, though it now faces opposition from President Obama and the Senate

Kate Middleton named in Time magazine's 100 Most Influential People in the World list

Two suspects wearing baseball caps were caught on CCTV camera minutes before blasts at finish line of Boston marathon.

The president spoke at interfaith service "Healing our city" in Boston's cathedral of the Holy Cross

Barack Obama has delivered a powerful and inspired speech at an interfaith memorial service in Boston in the aftermath of the twin blast at the Marathon's finish line.

A suspect is held over deadly poison sent to US president and Senator Roger Wicker

Letter received at off-site location away from White House.

British boxing champion stirs controversy by urging fans to 'think of Syria, Pakistan, Iraq, Palestine and all the countries that are bombarded frequently.'

Boston University student's friend Zhou Danling in stable condition following surgery at a Boston Hospital

FBI suspects explosives were placed in nylon bags or backpacks along with ball bearings and nails, which maimed several victims.

US president urges civilians to speak up to authorities if they see something suspicious

Latest threat in response to anti-North Korea demonstrations in Seoul.

FBI have searched an apartment in Boston's Revere district in connection with twin blasts in Massachusetts capital.

Boston Marathon finish line turned into war zone when two explosives ripped through crowds of cheering spectators.

Eyewitnesses speak of blood and severed limbs at scene of blasts.

Two explosions at marathon which killed three people and injured over 100 being treated as an act of terror.

'Tearful' Carol Thatcher thanks Barack Obama for praising the influence of her mother.

Britain's Barack Obama challenged by Raffles, 151, JuJu and Jalouse to go clubbing in Soho.

London première of Hollywood blockbuster Iron Man 3 rescheduled to avoid clash with funeral procession.

The project is included in Obama's $17.7 billion spending plan for the U.S. space agency.

Thatcher funeral: Barack Obama, Bill Clinton and Mikhail Gorbachev among world leaders on 2,000-strong list of invites.

While leaders such as Cameron and Obama laud Thatcher, the left blasts her neo-liberal economic policies.

Britain's first woman prime minister, who tore up the political rulebook in the 70s and 80s, polarised opinion.