At least 35 people died in the strike on the Yavoriv training base, around 20km from the border with Poland, a member of the western military alliance.

Przydacz tells BBC Radio 4's Today Programme that Russia move was "highly provocative".

"They surely knew this military base was placed very close to the Polish border," he says.

"So of course the Russians knew what they were hitting and they wanted to threaten Nato... They wanted to send a message threatening Nato."

Przydacz says he fears "my country and several other countries is somehow in danger since Mr Putin is trying to destroy the world we are living in".