The military wing of Fatah sent a message on Wednesday in Hebrew to Israel that "death will reach you from the south to the north," and advising the Israeli government and people to "flee our country and you won't die."
The video, made available by Palestinian Media Watch, was produced by the Al-Aqsa Martyrs' Brigades and posted by Fatah on Facebook.
A translation of the Hebrew message from Fatah is as follows:
A message to the Israeli government and the Israeli people: Death will reach you from the south to the north. Flee our country and you won't die. The KN-103 rocket is on its way toward you.
The release of the video coincides with the firing of hundreds of rockets by Hamas from Gaza targeting cities across Israel including Tel Aviv, Jerusalem, and the northern city of Haifa.
Fatah, the party of Palestinian Authority President Mahmoud Abbas, formed a Palestinian unity government with Hamas in May, though experts on the region say that the partnership is already all but dead.
"For all intents and purposes the unity government is done," said the Foundation for Defense of Democracies' Jonathan Schanzer. "I don’t see unity, cooperation between Hamas and Fatah looks dead, and no one is even talking about whether the unity government is functioning.
Concerns have been voiced that Abbas may move towards more militant options in order to remain popular with his constituents.