KYIV, April 24 – Ukraine prevented transactions that would have enabled undisclosed foreign entities acquire controlling stake in the country’s aircraft engine maker Motor Sich, the SBU security service reported Tuesday.

The names of the entities were not disclosed, but Motor Sich had earlier closely cooperated with Russian and Chinese aircraft companies.

The SBU raided the company’s headquarters one day before the scheduled general shareholder meeting at which the transactions could have been approved.