This was announced today at a briefing by SBU press officer Olena Hitlianska, Censor.NET reports.
According to her, the operation involved "considerable forces."
"It was a brilliant operation. The SBU has done a great job and attracted considerable forces. Since the investigation is underway, we do not disclose the details of the detention to prevent the escape of other officials. Sooner or later, all the officials somehow implicated in crimes against Euromaidan or events that led to these crimes will be arrested," she said.
As reported, the Security Service detained Olena Lukash Thursday, Nov.5.