At least 25 people were injured in an explosion near the Ganj Mandi police station in Rawalpindi on Sunday, rescue officials said.
Rescue 1122 officials said that 22 victims had been shifted to the District Headquarters Hospital, while three were provided first aid on the spot.
Initial reports suggested that it was a hand grenade attack but City Police Officer (CPO) Rawalpindi Mohammad Ahsan Younas said that it was too soon to ascertain the nature of the blast.
The CPO noted that it was the second attack near a police station in 10 days. On December 4, one man was killed and seven other people were injured in a blast carried out using an improvised explosive device near Pir Wadhai police station.