At app. 9am on Sunday 21 February 2010, Israeli occupation forces (IOF) positioned at the northern separation fence opened fire sporadically on Palestinian workers who were 350 meters away from the separation fence removing rubble of destroyed buildings. These workers collect rubble to sell it to brick factories which recycle it into bricks. This is the only source of bricks for construction that is available in the Gaza Strip, which suffers from an acute shortage of construction materials due the Israeli siege. No casualties or injuries were reported.