It was a bloody night in Ukraine as, according to the news channel Rossiya 24, five people have been reportedly killed in a shooting in Slavyansk.

According to the information released so far, it all started when four cars drove by the checkpoint of the protesters. The armed passengers opened fire at the local residents holding it, killing three people and seriously wounding another one.

According to the same information, a group of protesters, who had firearms unlike those holding the checkpoint, was called from their camp in the city. They opened fire at the attackers, killing two of them.

The protesters reportedly captured the attacker’s two cars, where they found firearms, explosives and aerial photos of Slavyansk.

The protesters believe that they were attacked by paramilitary from the Right Sector.

This is the first violent incident after the quadrilateral agreement signed on Holy Thursday between Russia, Ukraine, USA and EU, that aimed to defuse the crisis in the eastern provinces of Ukraine.