In the context of the 2018 Kerch Strait incident, Sergey Lavrov at a press-conference in Rome said that while the agreement stipulates the free navigation, since the Sea of Azov is the common internal waters, both sides have the right for inspection, which was exercised in the past without any complaints. However, the fact is that 24 sailors and 3 ships remain in the custody of Russia in violation of the agreement.