Head of the National Anti-Corruption Bureau (NABU) Artem Sytnyk has said the NABU is investigating criminal cases against officials of the state-run association of defense industry enterprises Ukroboronprom and first charges in these cases may be announced in January.

"With regard to officials of Ukroboronprom... I think that the first notices of suspicion will be announced somewhere in January. I would not want to make an accurate prediction…" he said on the air of Channel 5 on Tuesday evening.

The NABU head didn't name those who are being investigated.