TBILISI (Reuters) - Georgian police have detained two more people suspected of taking part in a failed attempt to assassinate President Eduard Shevardnadze last week, officials said on Wednesday. First deputy prosecutor-general Revaz Kipiani said the pair were arrested in Zugdidi, western Georgia, on charges related to the February 9 rocket-propelled grenade attack on Shevardnadze` motorcade, bringing the total number of those detained in the affair to seven. Zugdidi was a stronghold of late former president Zviad Gamsakhurdia, whose supporters Shevardnadze blamed for the latest attempt on his life. Shevardnadze, a former Soviet foreign minister, came to power after Gamsakhurdia, Georgia`s first elected leader, was ousted in a bloody coup in January 1992. Gamsakhurdia died in mysterious circumstances in 1993. Shevardnadze, 70, who is credited with helping end the Cold War but now is struggling to foster stability and prosperity in his small native land after years of civil war, says his attackers trained abroad and were linked to a Gamsakhurdia ally who Georgia says is in hiding in Moscow, protected by certain Russian interests, The president escaped unhurt when his motorcade came under a hail of bullets and rocket-propelled grenades in the capital Tbilisi last week, the second assassination bid he has survived following a car bomb attack in August, 1995. Leaders of Russia`s breakaway Moslem region of Chechnya, which borders Georgia, have said they are investigating claims by a maverick guerrilla leader, Salman Raduyev, that his forces took part in last week`s attack.