From the Jerusalem Post:
The crowds were dispersed and the fire was brought under control by Palestinian police before IDF forces could arrive on the scene.
The religious site suffered severe damage in the fire. There were no reports of injuries.
The IDF said that it will repair the site in order to allow worshipers to enter. Furthermore, the military's statement said that this incident is being viewed with the utmost severity, adding that it will work to identify and stop the arsonists.
Yisrael Beytenu chairman Avigdor Liberman responded to the incident, saying "This arson shows that the Palestinian Authority's occupation is no different than that of Islamic State," he said. He said that Palestinians are being incited by the lies of PA president Mahmoud Abbas, killing Israelis with machetes and knives "and now burning holy and historical sites, just like Islamic State is doing in Iraq and Syria." [...]