Ukraine says Russia means to involve the nation 'militarily and politically'

By Laura Smith-Spark, Gul Tuysuz and Victoria Butenko, CNN

April 25, 2014 - Updated 1624 GMT (0024 HKT)

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War of words heightens over Ukraine

STORY HIGHLIGHTS

Liberated U.s. columnist says he was defeated, tied up while held by professional Russian aggressors

Ukraine authority affirms "second stage" of operation against aggressors in Slavyansk

Ukraine PM says Russia has 24 hours to illustrate what its troops are doing on the outskirt

President Barack Obama says focused on assents against Russia are "primed to go"

Kiev, Ukraine (CNN) - U.s. President Barack Obama undermined Russia on Friday with new endorses over its activities in Ukraine as the Ukrainian Prime Minister additionally turned out with extreme words against Moscow.

Russian endeavors to begin clash in Ukraine will prompt military clash in Europe, Prime Minister Arseniy Yatsenyuk cautioned.

He additionally accused Russia of intending to involve his nation "militarily and politically," and said Moscow needs to begin a third world war.

His solid articulation came in the company of a sharp heightening in pressures.

Russia's resistance boss requested new military drills Thursday close to the outskirt with eastern Ukraine after Ukrainian strengths said they killed five expert Russian activists in an operation to clear road obstructions close to the city of Slavyansk.

 Tense minutes at Ukrainian checkpoint Russia requests new military drills Kerry: Russia not keeping its statement Analysis: How the Kremlin sees Ukraine

Serhiy Pashinskiy, head of staff to acting Ukrainian President Oleksandr Turchynov, said Friday that the operation had now entered its "second stage," pointed at surrounding Slavyansk and cutting off extra supplies or backing.

Yatsenyuk said he'd solicited Russia to demonstrate the vicinity from its troops on Ukraine's outskirt inside 48 hours - however 24 hours after the fact, Kiev is even now holding up for an authority reaction.

In the meantime, he said, the world is lined up with Kiev in its exertions to restore dependability and protect "the arrangement of world security that Russia needs to decimate."

On Friday, Ukraine's Interior Ministry reported that 13 individuals ready for transport - including remote spectators and military authorities - were confined at the passage of Slavyansk. The service said the captors were obscure, yet that the prisoners were taken to a security office that is under the control of pro=russian separatists. The prisoners are seven European agents from the Organization for Security and Co-operation, five Ukrainian military delegates, and a transport driver, the service said.

Arrangements were progressing to secure their discharge, the service reported.

U.s. weight

In the interim, top U.s. authorities have pledged more corrective worldwide activities focusing on Russia's economy if Moscow, in their perspective, keeps on escalaing the circumstances.

In a telephone call Friday, Obama and European pioneers concurred that Russia has neglected to do its part to de-raise strains, the White House said.

The Russians have not underpinned an arrangement arrived at a week ago to abatement pressures, nor have they approached aggressor gatherings to put down their weapons, the White House said. Actually, Russia has exacerbated things through its talk and military activities, it said.

At a news meeting Friday in South Korea, Obama said there will be focused on authorizes that are "prepared to go."

"I think its essential for us not to expect that the focused on endorses that we're applying now essentially tackle the issue," he said.

"What we've been attempting to do is constantly raise the expenses for Russia of their activities while even now leaving the likelihood of them moving in an alternate course. Furthermore we will keep on keepping a few shafts in our quiver on the off chance that we see a further weakening of the circumstances through the following a few days or weeks."

Obama additionally commended the solidarity of different nations in censuring Russian "intruding" in Ukraine.

West undermines Russia with more authorizes

New endorses 'an acceleration'

As stated by senior U.s. authorities, the extra endorses could come as promptly as Friday.

 Ukraine emits into crisp viciousness Pro-Kiev government official discovered dead in Ukraine Armored vehicles enter Slavyansk

Photographs: Crisis in Ukraine Photos: Crisis in Ukraine

In their sights: key Putin associates, prominent Russian oligarchs and perhaps Russian establishments and organizations, the U.s. authorities told CNN.

The new endorses "will be a heightening," one authority said.

U.s. Secretary of State John Kerry called Russia's movements in Ukraine "a full-throated exertion to earnestly disrupt the majority rule transform through horrible outside intimidation."

"In the event that Russia proceeds in this bearing," he included, "it won't simply be a grave slip-up, it will be an unmanageable mix-up."

Russia additionally increase its talk Thursday.

President Vladimir Putin told Russian state media that "if the Kiev administration has begun to utilize the armed force against the populace inside the nation, it, without question, is an intense wrongdoing."

This, he said, might have results for Ukraine's break pioneers and for relations between the two nations.

Moscow contends that the administration in Kiev, which took control after expelled star Moscow President Viktor Yanukovych fled Ukraine in February, is illegitimate.

On Friday, the International Criminal Court said boss prosecutor Fatou Bensouda had opened a preparatory examination into affirmed law violations perpetrated in Ukraine while Yanukovych was in force.

The examination will take a gander at the period from November 21 to February 22, when road dissents against Yanukovych's administration occurred that brought about wicked conflicts with security powers.

Unpredictable circumstance

Just a week has passed since remote clergymen for Ukraine, Russia, the United States and the European Union consented to an arrangement in Geneva, Switzerland, pointed at moving the emergency.

At the same time that agreement, which called for all sides to cease from brutality and for unlawful local army gatherings to disa