Bob Crow, Britain's best known and most divisive trade union leader, has died at the age of 52. The Rail, Maritime and Transport Union said Crow, its general secretary since 2002, died after a massive heart attack.

IBTimesUK looks back at his career in pictures.

2002 bob crow
September 9, 2002: Bob Crow of the RMT talks to delegates about Iraq on the first day of the TUC conference in BlackpoolReuters
2004 bob crow pcs
November 5, 2004: Bob Crow attends a rally for the Public and Commercial Services Union (PCS) after a march through London during a day of industrial actionGetty
2005 stockwell
September 28, 2005: The mother and father of Jean Charles de Menezes leave Stockwell Tube station with Bob CrowGetty
2005 bob crow blair
September 12, 2006: Bob Crow waves a sign as Prime Minister Tony Blair prepares to make a speech at the annual TUC Conference in BrightonReuters
2010 bob crow court
April 1, 2010: Bob Crow leaves the High Court in London after Network Rail a won an injunction banning strike action by members of the RMT railway unionGetty
2010 crow boris
October 4, 2010: Bob Crow, General Secretary of the RMT and Gerry Doherty, General Secretary of the TSSA, address members of the press as London Underground workers stage a 24-hour walk out over plans to cut jobs in ticket officesGetty
2010 crow
October 23, 2010: Bob Crow addresses activists during protest against government spending cuts announced by Chancellor George OsborneGetty
2013 corw
September 8, 2013: Bob Crow addresses a fringe meeting ahead of the Trades Union Congress' annual congress in BournemouthReuters
2013 bob
October 23, 2013: Bob Crow joins campaign groups protesting outside Oxford Circus tube station against plans to close London Underground ticket offices and remove guards on London Overground trainsGetty