However , after a few hours , rebel reinforcements from Ajdabiya arrived in Brega .
However , after a few hours , rebel reinforcements from Ajdabiya pushed back pro-Gaddafi fighters to the university campus where they came under siege .
However , after a few hours , rebel reinforcements from Ajdabiya arrived in Brega and pushed back pro-Gaddafi fighters to the university campus where they came under siege .