This is no joke! Hand grenade, submitted as proof, explodes inside Pakistan anti-terrorism court - WATCH full story

Karachi: In an unusual incident, a hand grenade submitted as proof in a Pakistani anti-terrorism court on Monday went off in Karachi. 

The explosion took place in the court where the judge was presiding over a high-profile terror case. 

WATCH these videos to find out - How it happened!

The grenade was among weapons and explosives recovered from a suspect against which a case had been filed in the ATC for illegal possession of explosives.