The government said it was taking the action in response to terrorist attacks that have recently occurred in various regions of Ukraine, Ukraine Today reports. 

The strategic city of Mariupol, which is still controlled by Ukrainian government forces, is seen by the government as a target for invasion if the Kremlin, using its proxy forces in the Donbas, attempts to create a land corridor to Crimea.

See’s video section for more of the latest news from Ukraine in video from Ukraine Today, Ukraine’s 24-hour English-language news channel.