Tony Blair and Bill Clinton will attend Martin McGuinness's funeral amid huge security clampdown but Theresa May opts to stay away

Mr Clinton (pictured in 2010) and Mr Blair (in 2005) will fly to Northern Ireland tomorrow to pay the respect to the Sinn Fein politician in Londonderry, which will be packed with thousands of mourners. The Prime Minister has opted not to attend and Northern Ireland Secretary James Brokenshire will represent the UK Government. There will be a huge security operation with so many dignitaries in McGuinness' home city amid heightened tensions after a bomb attack on police in nearby Strabane last night. Today a book of condolence was opened at Stormont (signed by new Sinn Fein leader Michelle O'Neill right).