![A Pakistani paramedic treats an injured child following a grenade attack on a polio vaccination team in Quetta. [AFP]](/sites/default/files/styles/d08_standard/public/im/pakistan/000_Del6277601.jpg?itok=A7Cv62WW "A Pakistani paramedic treats an injured child following a grenade attack on a polio vaccination team in Quetta. [AFP]")
Four people were injured Sunday when militants attacked a polio team in Pakistan that was administering a vaccination to children, police said.
The militants threw a small bomb at the team, Dawn News reported.
The injured included a 5-year-old girl, who was severely hurt and transported to the Quetta hospital for treatment.
The explosion also damaged a nearby building.
A polio campaign has been under way in Pakistan for four days, Dawn News said.
No one has claimed responsibility for the attack.
