Eyewitnesses told Interfax they saw Grad rocket launchers being used twice but could not say by which side.
Eyewitnesses also said that a gas pipeline near the airport has been damaged and the airport's engineering premises were burning.
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"With due respect to the army, no matter how sophisticated the army is, this is not a war they can easily win. It is one that everybody has to participate in order for the nation to win. What they should do is to make sure the police are well equipped to face the challenge. If you see when they started they first of all scared away the police. They are attacking police station all over the place just to scare them. And they allowed police to be scared by bringing in army, no!Continue..