This is a timeline of the War in Donbass from April–June 2014.
At 3:30 am, a group of pro-Russian activists stormed the SBU offices in Donetsk and Luhansk. They did not make any clear demands. The militants took control of the SBU armoury and armed themselves with automatic weapons, and other supporters brought bricks and other debris to erect barricades. Their numbers were initially at 1,000 but subsequently thinned.
The protesters in Donetsk declared a People's Republic of Donetsk and unification with Russia. Ukrainian news agency UNIAN reported gunmen then tried to storm a Donetsk TV building, but were deterred by the police.
At night, Ukrainian Special forces stormed a Security Service office in Donetsk that had been taken by pro-Russian militants. No casualties were reported. In Luhansk, members of a self-styled "Army of the Southeast" asked for support to preserve "our rights and values." They also claim to be ready to send a "reserve" to Donetsk to assist separatists there.
In an address on national TV (Ukrainian) interim President Oleksandr Turchynov stated that the current unrest in eastern Ukraine was "the second wave" of a Russian operation to destabilise Ukraine, overthrow the government and disrupt planned elections and an attempt by Russia to "dismember" Ukraine. He also vowed to launch a major "counter-terrorism" operation against separatist movements in the country's eastern regions.
The referendum and declaration of independence in Donetsk was reportedly put on hold and protesters there reportedly gave up some weapons.
In Luhansk, separatists occupying the SBU building declared themselves the "Lugansk Parliamentary Republic". According to Ukrainian security officials, The separatists planted mines in the building and have taken 60 people hostage.
On the morning of 8 April, the 'Patriotic Forces of Donbass', a rival group unrelated to Donetsk Republic organisation who proclaimed independence and seized the council, issued a statement to counter the Donetsk Republic's declaration of independence, citing complaints from locals. Their announcement stated that they would quash the potential state's establishment, cancel the referendum, and, on their part, stated that the declaration is illegal. Protesters reportedly gave up some weapons too. Despite this, the Donetsk Republic organisation continued to occupy the RSA and declared themselves the legitimate authority, and upheld all previous calls for a referendum and the release of their leader Pavel Gubarev. In the afternoon of 8 April, about a thousand people rallied in front of the RSA listening to speeches about the Donetsk People's Republic and to Soviet and Russian music.