Three people were injured in an explosion in a Pakistan court after the judge asked a police officer to explain how a grenade works.

Instead of describing how the weapon works, the constable produced a live grenade and pulled out the pin, resulting in a "loud explosion".

Pakistan Daily reported that the constable and court clerk were among the injured in the blast at Karachi's Anti-Terrorism Court. They were taken to a nearby hospital for first aid, but are expected to recover.

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