At least 20 people, including policemen, were killed and over 60 injured when a suicide bomber on Monday rammed an explosive-laden truck into the gates of a police station in a southern Russian city in the restive Ingushetia region, neighbouring Chechnya. "At about 09:08 am Moscow time (10.38 am IST), a yellow Gazelle truck broke through a gate at a check point near the building. A powerful explosion followed shortly after that," a local investigator was quoted as saying.