A passenger bus was blown up by a land-mine not far from the train station in Grozny on May 30. The Ministry of Internal Affairs told Rosbalt that as a result of the explosion three people died and ten construction workers received splinter wounds. Doctors said that the condition of several wounded was critical. According to several reports, the land-mine was activated by a radio signal. Specialists from the Ministry of Internal Affairs and investigators from the public prosecutor's office are currently working at the explosion site.