The Ukraine government is considering stripping both Khors Air and Dart Airlines of their licenses for allegedly providing aircraft to entities in Syria, Iran, and Iraq, who fall under US sanctions.

Khors or Dart are accused of selling or leasing A320s, that ultimately ended up with Syrian and Iranian airlines. In one instance, Cham Wings (Syria) was reported to have made 51 secret flights between Damascus or Latakia and Rostov with an A320 sourced from one of the Ukrainian carriers.

The case is currently being investigated by the Ukraine government. Both airlines may be blacklisted and their certificates dismissed, if the allegations are confirmed, says Ukraine’s infrastructure minister, Volodymyr Omelyan.

Khors and Dart were both founded by Serhiy Tomchani, a Ukrainian national, who denies any wrongdoing.

The Ministry of Infrastructure of Ukraine will also recommend sanctions against Syrian airline Cham Wings.