"An explosive device was detonated outside the U.N. agency for Palestinian refugees in Gaza City overnight, without causing any injuries, U.N. and Palestinian security sources said late Saturday.
'A bomb exploded near the outer wall of U.N.RWA's headquarters in Gaza, some 10 meters from the gate, without causing any injuries or damage,' agency spokesman Adnan Abu Hasna told AFP.
The Hamas-run security forces also confirmed the blast, saying they had opened an inquiry after 'two homemade bombs' exploded, one outside UNRWA and a second elsewhere in the city, causing slight damage but no injuries...
Such explosions take place on a regular basis in Gaza, often targeting political officials, whether representatives of president Mahmud Abbas's Fatah party or the rival Hamas movement which is still the de facto power in Gaza."