KIEV, June 25 – Everybody involved in the case of the illegal customs clearance of 11 billion cubic meters of natural gas will be questioned SBU Security Service Valeriy Khoroshkovsky said.

"We'll summon everybody who one way or another is involved in this case, despite his or her former official posts in the government and other agencies, because huge financial losses were caused to the state," he said at a briefing in Kiev on Friday.

Khoroshkovsky said that this "trap for the Ukrainian state" had been created deliberately.