As reported by Censor.NET citing Ukrainski Novyny, this was announced by the convict's lawyer Oleksandr Hulchenko.
According to him, the latest information was received that those demonstrating in front of the court building are armed with fire weapons.
Besides, other convicts have been bombarded with eggs.
On Monday, a preparatory meeting on trial of Kernes and his two bodyguards convicted of murder threats, tortures, and kidnapping was to take place.
As reported earlier, the Kyivsky district court of Poltava rescheduled the meeting to May 18, 10:30 a.m.
The trial was rescheduled due to Kernes' absence, for he had been on treatment in Italy by May 2.