The opposition said it demanded that Ukrainian Prosecutor General Viktor Pshonka name all those detained, hospitalized and missing during the pro-EU rally on Independence Square in Kyiv.

"We address the Ukrainian prosecutor general [with the demand] to report immediately the number of those arrested, the number of detainees, how many people are in hospitals now and how many violent deaths occurred in Ukraine in the past two weeks. This is an official request," the head of the Batkivschyna parliament faction, Arseniy Yatseniuk, said at a briefing in Kyiv on Wednesday.

As of now, the fate of "over ten activists of the Euromaidan" is not known, Svoboda Party leader Oleh Tiahnybok said.