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The security chief reaffirmed his support for the initiative by Ukrainian President Petro Poroshenko to strengthen entry control for foreigners, according to 112 Ukraine TV channel.

"This will definitely help us in our work," said Hrytsak.

"And I would go even further: I would introduce a legislative ban and criminal liability for deputies, politicians, and public figures visiting the aggressor state," said Hrytsak.

As UNIAN reported earlier, Ukrainian President Petro Poroshenko On Sept. 1 signed Decree No. 256/2017 to enact a decision taken by the National Security and Defense Council (NSDC) on July 10 to strengthen control over entry into Ukraine, departure of foreigners and stateless persons from Ukraine, their compliance with the rules of stay in Ukrainian territory.

Read alsoUkraine tightens control over entry/departure of foreignersAccording to the decree, the Cabinet should update the list of migration risk countries, in particular, by adding Russia.

The government should within two months work out a mechanism and phases of the introduction of preliminary electronic notification by foreigners and stateless persons about their plans to enter Ukraine; entry into Ukraine and departure from Ukraine by foreigners, including citizens of the Russian Federation, with the use of biometric passports

Read alsoFSB mulling new provocations against Ukrainians: fears spread in Moscow of "Ukrainian sabotage groups"In addition, the government must ensure the launch of the national system of biometric verification and identification of Ukrainian citizens, foreigners and stateless persons from January 1, 2018, resolving the issue of the necessary resource support for fixing biometric data of foreigners, including citizens of the Russian Federation, and stateless persons amid border control at the checkpoints across the state border of Ukraine and entry/exit control points.