 Complete the following phrase:  Attempts to seize the Donetsk regional state administration RSA building began since pro-Russian protests erupted in the eastern and southern regions of Ukraine, in the wake of the 2014 Ukrainian revolution. Pro-Russian protesters occupied the Donetsk RSA from 1 to 6 March 2014, before being removed by the Security Service of Ukraine SBU. On 6 April, 1,0002,000 people gathered at a rally in Donetsk to demand a status referendum similar to the 