AMSTERDAM - The UN-backed Lebanon tribunal said on Friday it would pursue investigations into three bomb attacks which it believes are connected to a separate bombing which killed Lebanese politician Rafik al-Hariri in 2005.Daniel Fransen, the pre-trial judge for the Special Tribunal for Lebanon (STL), ordered the Lebanese authorities to hand over information about the attacks and assassination attempts on three other politicians -- Marwan Hamadeh, George Hawi, and Elias al-Murr.Hamadeh is a former telecoms minister who survived an assassination attempt in 2004 while al-Murr, a former deputy prime minister and former defence minister, was wounded in a bombing in 2005.Hawi, a former Communist Party chief and critic of Syria, was killed by a bomb in his car in Beirut in 2005.