There has been a massive border check on DND flyway from Noida to Delhi after 8 cops were killed in an encounter with criminals near Kanpur. At least eight Uttar Pradesh police personnel, including a deputy superintendent of police, were killed in an encounter with criminals in Kanpur, officials said on Friday. The encounter took place when the police team was approaching to arrest Vikas Dubey, a history sheeter facing 60 criminal cases, in Dikru village under Chaubeypur police station on the intervening night of Thursday and Friday, police said. A case under Sec 307 was lodged against history-sheeter Vikas Dubey, police had gone to arrest him.