YEREVAN. – President of Armenia Serzh Sargsyan visited Nairi medical center where several injured from the Friday blast in the Republic Square were taken, president’s press service reported. According to preliminary reports, 50 people were taken to the hospital as a result of a balloon blast, the Emergency Situations Ministry reports. The incident occurred during the rally of the Republican Party of Armenia. An alarm was received that an incident occurred during the rally of the Republican Party of Armenia (RPA) in the Republican Square at 7.37 p.m. on Friday. Gas balloons were exploded, casualties are reported. Rescuers and emergency employees arrived at the site, Armenian Ministry of Emergency Situations reports. Additional information will be available later. The Republican Party of Armenia (RPA) is a ruling conservative party in Armenia founded on 2 April, 1990, and registered on 14 May, 1991, being the first officially registered socio-political organization in the independent Republic of Armenia. The founder of the party was Ashot Navasardyan. After his death the party was headed by former Armenian prime minister, very influential political figure, Vazgen Sargsyan, who was killed in 1999 terrorist attack in the parliament. He was replaced by another Armenian Premier Andranik Margaryan. After Margaryan’s death, the incumbent Armenian President Serzh Sargsyan took the office of the chairman of RPA board. Since 2003, the Republican Party is a core member of the ruling coalition along with the Prosperous Armenia and Orinats Yerkir parties. RPA has majority of seats in the Armenian parliament since 2003. The Republican Party of Armenia will run in the parliamentary elections under its new slogan: “Let us believe to change!” The Party’s proportional list includes 253 names. RPA has also nominated MP candidates with the majority election system in 33 electoral districts.