The Luhansk security services building was among several government offices seized by pro-Russian groups Sunday in an escalation of protests against the interim government in power since the ouster of President Viktor Yanukovych in February.
As of today morning, protesters in Luhansk had erected high barricades along a thoroughfare running in front of the security service premises.
The protesters say they want autonomy for their region a demand similar to one that preceded Crimea's annexation by Russia.