One killed, 19 injured in Philippine prison blast

One person was killed and 19 were injured Thursday in an explosion inside a prison in the Philippines.

The incident occurred in the New Bilibid Prison (NBP), Metro Manila when a hand grenade exploded inside the security compound, Xinhua reported

NBP officers have been under fire after authorities conducted raids last month, following reports that convicted drug lords still managed to continue with their illegal drug trade even under custody.