 Russia's M4 highway that links Moscow with the country's southern cities, including Rostov-on-Don, was blocked on June 24th Reuters video shows. A large number of vehicles were seen standing still, not being able to drive north in the direction of Moscow. In Rostov-on-Don, troops and various armored vehicles of rebellious mercenary chief Yevgeny Prigazin were seen in the center of the city. The dramatic turn, with many details unclear, looked like the biggest domestic crisis Putin has faced since he ordered a full-scale invasion of Ukraine, which he called as special military operation, in February last year. In a televised address, Putin said that excessive ambitions, invested interests have led to treason, and called the mutiny a stab in the back.