Clashes erupted inside the Al-Aqsa mosque in Jerusalem early Wednesday as Israeli police said they had entered to dislodge "agitators", in a move denounced as an "unprecedented crime" by the Palestinian Islamist movement Hamas. The fresh violence came nearly halfway through Ramadan and as Jews prepared to celebrate Passover.<br /><br />The mosque, which is Islam's third holiest site, is built on top of what Jews call the Temple Mount, Judaism's holiest site.