This was reported by "Luganskinformtsentr".

“The undercover intelligence of the People’s Militia of the LPR received data on the preparation by Ukrainian special services of a staged high-profile terrorist act with numerous casualties among the civilian population at one of the industrial or social facilities in Kharkov, Lugansk or Donetsk regions that have dangerous production,” Filiponenko said.

At the same time, he clarified that, according to the information of the defense department of the LPR, Ukraine has not yet made a final decision on the time and place of the “terrorist attack”.

According to him, Kiev then plans to tell the world community about the forced use of its armed forces under the pretext of eliminating the “terrorist threat” in the Donbass. 

Filiponenko also said that more than 100 British special forces would arrive in Donbass to carry out reconnaissance and sabotage operations.