The authorities intend to introduce the state of emergency in Ukraine, leader of the Batkivschyna faction in Ukraine's Verkhovna Rada Arseniy Yatseniuk said.

"We know that the administration of [Ukrainian President] Viktor Yanukovych is currently working on introducing the state of emergency," Yatseniuk said at a briefing in the National Resistance Headquarters in Kyiv on Sunday.

Ukraine's Security Service has started proceedings on the seizure of power, "which no one seized because the power belongs to the Ukrainian people," Yatseniuk said.

"We address President Viktor Yanukovych officially – the attempts to introduce the state of emergency are nothing but a coup by Viktor Yanukovych," Yatseniuk said.

Yatseniuk said he urged people to go to protest rallies if the state of emergency was announced in Ukraine. "In case the state of emergency is announced - everyone should go to Maidan [a protest rally on Kyiv's Independence Square]," he said.

The rally is peaceful and protesters have not seized a single administrative building, Yatseniuk said.

"If they think that they can suppress the situation with the state of emergency, our response is as follows – this will only escalate the situation. And the blame for, God forbids, any blood shed will be on Viktor Yanukovych personally," Yatseniuk said.

One of the conditions to receive help from Russia, which was set before the Ukrainian president, was "establishing order" in Ukraine, Yatseniuk said citing his sources.

"We know from reliable and believable sources that Russia demanded establishing order in Ukraine as one of the conditions for getting financial help from Russia to Viktor Yanukovych, receiving other preferences, including the gas price, and guaranteeing the re-election for the second presidential term," Yatseniuk said.

"Establishing order" means "introducing the state of emergency and severe forceful suppression of large-scale protest rallies," Yatseniuk said.