Eight Uttar Pradesh police personnel, including a deputy superintendent of police, were killed after they were fired upon by criminals in Kanpur in the wee hours of Friday.
The incident took place at a village in Kanpur when a police team had gone to raid a house in search of history-sheeter Vikas Dubey.
Dubey has over 60 cases against him, including a murder charge for the killing of Santosh Shukla, a former UP minister.
As the police party reached the Dikru village to make the arrest, criminals opened indiscriminate fire from the rooftops, leaving Deputy Superintendent of Police (DSP) Devendra Mishra, three sub-inspectors and four constables dead, officials said.
According to the sources, four cops were critically injured in the encounter.
The injured policemen have been admitted to a hospital for further treatment.
UP Chief Minister Yogi Adityanath condoled the deaths of policemen and asked for a report on the incident.