From a live stream I am following on the Internet, the Kharkov local police has convinced the cops from Poltava (loyal to Kiev) to leave. The government buildings are under the control of the Russian speakers. Earlier the Poltava cops attacked the demonstrators with flashbang and teargas grenades but failed to push them back.
There are several wounded people reported though no deaths. Government buildings have suffered, some stories have burned. Still, in comparison to the violence in Kiev this assault was defeated with relatively little violence.
At this point in time, Kharkov is still free and under popular control. The local Kharkov police seems to be on the side of the local people, at least most demonstrators seem to think so.
I have no information about Donetsk or Lugansk.
Will keep you posted.
The Saker