Allahabad, Sep 10 - Hundreds of people blocked traffic and beat up a police official in Uttar Pradesh's Allahabad district Thursday to protest the death of a Dalit man after he was allegedly beaten by police during a routine vehicle check Wednesday night.

Inspector B.B. Tiwari suffered serious injuries when the mob beat him up. He is in hospital.

A case of murder has been lodged against four policemen allegedly responsible for the death of the Dalit, identified as Nandlal.

'A case under Section 302 (murder) has been registered against Inspector Shail Kumar and 3 constables who were on duty at that time. The matter is being probed,' Additional Director General of Police (Law and Order) Brijlal told reporters.

According to reports, Nandlal was returning from a relative's village on a motorcycle when the police stopped him.

Munshilal, a relative, alleged: 'I was accompanying him. An inspector called Shail Kumar stopped us.