(ANSAmed) - CAIRO, DECEMBER 4 - Egyptian police on Tuesday fired tear gas at demonstrators trying to scale the barbed wire barrier separating them from President Mohamed Morsi's palace, leaving dozens intoxicated, sources said. The president fled the palace after demonstrators smashed through the police cordon, reaching the palace walls, other sources said. Shortly after, security forces withdrew from the presidential palace perimeter, leaving some Republican guards within the palace itself, sources said. Al Jazeera TV broadcast images of a police armored vehicle followed by officers in riot gear, completely surrounded by protesters. At least 18 of them were intoxicated by tear gas, MENA news agency reported. (ANSAmed).