Gaza City  - Unknown assailants detonated a bomb at the offices of a charity in the southern Gaza Strip town of Rafah in the early hours Thursday, witnesses said.

No one was injured. Witnesses said the blast damaged the interior of the offices of the Yabous charity, linked to the Fatah party of Palestinian President Mahmoud Abbas which was ousted by the Islamic Hamas movement in June 2007.

Further details were not immediately available. (dpa)