(NBC NEWS) TEL AVIV, Israel – Dozens of Israeli security officers and Palestinian worshipers clashed at the Al-Aqsa mosque in Jerusalem on Friday, amid rising tensions ahead of a visit by President Barack Obama.

According to Israeli police spokesman Micky Rosenfeld, police entered Al-Aqsa after Palestinians threw stones and two firebombs at them.  The situation was under control, although there were still several masked men in the mosque, which the police would not enter, he said.

Al-Aqsa is one of Islam’s holiest sites. It is also revered by Jews as the site of their Biblical temple.

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