The Ukrainian government has introduced the state of emergency and put all territories on high alert, Prime Minister Arseny Yatsenyuk announced.
"In accordance with the Ukrainian Code of Civil Protection, the Cabinet of Ministers has adopted a decision to recognize an emergency situation at a state level," Yatsenyuk is cited as saying by Interfax-Ukraine.
According to the PM, the move is aimed at providing the most efficient coordination of all government agencies in order to ensure civil protection and the safety of the population.
The statement was made after the field meeting of the Cabinet of Ministers, which took place at the headquarters of the State Emergency Service of Ukraine in Kiev on Monday.
Kiev’s troops and Donbass militia forces are locked in renewed hostilities in southeastern Ukraine after a shaky ceasefire reached by the sides in September utterly collapsed.
Ukrainian forces launched a massive offensive in mid-January, but failed to gain any ground despite employing tanks, artillery and aviation.
On Saturday, a residential area in the port city of Mariupol, which has remained relatively insulated from violence throughout the majority of the conflict, was shelled.
The Kiev forces and the militias have been trading blame for the incident, which took the lives of at least 30 people and saw another 100 injured.
The Ukrainian conflict began last April when Kiev launched a military operation in the southeastern Donetsk and Lugansk Regions, after they refused to recognize the country’s new, coup-imposed authorities.
The death toll in the Ukraine conflict has exceeded 5,000 people. Over 10,000 have been injured, according to UN estimates.