A policeman was killed and another injured when a trailer rammed into a police picket here on Saturday.
Police said that an over speeding trailer got out of control of the driver and it rammed into a police picket established at National Highway in Shikarpur district.
A policeman present in the picket died on the spot and another sustained wounds. The body and injured were shifted to hospital for medico-legal formalities.
The police arrested the trailer drive.