Death toll after Monday riots near parliament now 3

20-year-old conscript Oleksandr Kostyna died in a Kyiv hospital on September 1. He sustained serious fragmentation wounds during the explosion, the wounds were incompatible with life," the press service said. Earlier reports said two National Guard members  Ihor Debrin and Dmytro Slastykov died on Monday and on Tuesday As reported earlier, on August 31, clashes erupted at a protest against constitutional amendments supposed to give greater powers to Donbas. A grenade was thrown at the police cordons surrounding the parliament building. A total of 141 people have been injured, and most of them - 131 - are police officers and National Guard soldiers, including 10 in serious condition. Authorities say the grenade was thrown by a member of the nationalist Svoboda political alliance, identified as 27-year-old Ihor Gumenyuk. During a closer inspection of the suspect's belongings officers say they recovered an object resembling a grenade fuse. Gumenyuk and dozens of others linked to Monday's violence are currently in police custody. Prime Minister Arseniy Yatsenyuk called for life imprisonment for the man responsible for throwing the grenade.Yatsenyuk blamed ultranationalists for the violence. In an address on live television, Yatsenyuk said the right-wing protesters were "worse" than the Russian-backed separatists in eastern Ukraine who have been locked in a civil war with the government since last year, because their violence comes "under the guise of patriotism."