The Labour in Britain has suspended MP Eric Joyce from the party after he was arrested over allegations of an assault in a House of Commons bar, according to reports.
Scotland Yard confirmed officers detained a man in his 50s after being called to reports of an incident at a bar within the House of Commons at around 10.50pm last night. He was then taken to be held in custody at a central London police station.
Mr Joyce, the MP for Falkirk since December 2000, served in the Army Education Corps before pursuing a career in politics.
In 2010 he resigned as shadow Northern Ireland minister after pleading guilty to failing to provide a breath test.
From 2003 Mr Joyce served as a parliamentary private secretary to a number of government ministers.
Mr Joyce quit as the private secretary to Bob Ainsworth in 2009 due to his concerns over the war in Afghanistan. Prior to that he had been a parliamentary aide to John Hutton, including the period when he was defence secretary, among others.
According to his constituency webpage, Mr Joyce has a constituency office in Denny and an office in Portcullis House, Westminster.
During his time in Westminster he has held an interest in defence and military issues due to his army background, the website adds.
PA