The Russian defence ministry is promising to open a safe corridor to allow foreign ships to leave Black Sea ports. A separate corridor will be open to allow ships to leave Mariupol by sailing from the port on the Sea of Azov to the Black Sea. Russian Colonel General Mikhail Mizintsev, who heads the National Defence Control Centre under the General Staff, said 70 foreign vessels from 16 countries are now in six ports on the Black Sea including Odesa, Kherson and Mykolaiv. Mizintsev, whose comments at a briefing in Moscow on Wednesday were reported by the Interfax news agency, said the corridors would be open every day. Earlier Wednesday, the Russian military said Mariupol’s port was functioning again after three months of fighting. The defence ministry spokesperson said the military first had to clear the port of mines.