More: 'Their thoughts and prayers are with Jacintha Saldanha's family, friends and colleagues at this very sad time,' palace says - @NBCNews

British police arrest 2 people in separate attacks on mosques following terrorism incident in London - @skynews

Report: Britain investigating possible Nigerian link in London attack, sources say - @Reuters

London Mayor Boris Johnson says it's 'overwhelmingly likely' London attack was a terrorist attack - @Reuters

UK government's Cobra committee agrees to tighten security around Woolwich and other military barracks in London after attack - @BBCNews

London Mayor Boris Johnson on Woolwich attack: 'This was sickening and unforgivable act of violence' - @itvnews

Queen is concerned by report of London attack and is being kept informed, Buckingham Palace spokesman says - @SkyNewsBreak

British PM Cameron says attack in London that killed 1 could be terror-related - @itvnews

French President Hollande says man killed in London attack is a British soldier - @AP

British PM Cameron to call emergency meeting after man is killed in suspected terror attack in London - @SkyNewsBreak

London Ambulance confirm: 1 man dead at scene of Woolwich incident; 2 others injured, 1 of them seriously - @DannyShawBBC

More: 'Their thoughts and prayers are with Jacintha Saldanha's family, friends and colleagues at this very sad time,' palace says - @NBCNews

Breaking News

More: 'Their thoughts and prayers are with Jacintha Saldanha's family, friends and colleagues at this very sad time,' palace says - @NBCNews

British police arrest 2 people in separate attacks on mosques following terrorism incident in London - @skynews

Report: Britain investigating possible Nigerian link in London attack, sources say - @Reuters

London Mayor Boris Johnson says it's 'overwhelmingly likely' London attack was a terrorist attack - @Reuters

UK government's Cobra committee agrees to tighten security around Woolwich and other military barracks in London after attack - @BBCNews

London Mayor Boris Johnson on Woolwich attack: 'This was sickening and unforgivable act of violence' - @itvnews

Queen is concerned by report of London attack and is being kept informed, Buckingham Palace spokesman says - @SkyNewsBreak

British PM Cameron says attack in London that killed 1 could be terror-related - @itvnews

French President Hollande says man killed in London attack is a British soldier - @AP

British PM Cameron to call emergency meeting after man is killed in suspected terror attack in London - @SkyNewsBreak

London Ambulance confirm: 1 man dead at scene of Woolwich incident; 2 others injured, 1 of them seriously - @DannyShawBBC