Palestinian medical sources said on Sunday that three Palestinian residents from the Jabalya refugee camp in the northern Gaza Strip were killed in an explosion that ripped through a house.
Media sources reported that the explosion took place at the house of Hassan Almotawaq, of the Qassm Brigades, the armed wing of the ruling Hamas party.
Medics confirmed the injury of a number of others and that their conditions were described as moderate to slight.
The incident was an internal one and had nothing to do with any Israeli army actions, Palestinian security sources confirmed.