The other two face non-custodial preventive measures, according to the Internal Security Agency cited by Reuters and DW. The suspects are five Polish nationals and a Russian woman.
Authorities accuse them of supplying parts used, among other purposes, in ammunition and weapons production while circumventing the embargo. These are allegations, not convictions.
The operations preceded the announcement, taking place between 21 October and 2 November, according to Polish reporting and the Kyiv Independent. The development reported here is their disclosure on 5 November.