(CNN) The State Department's security arm has been told to plan for potentially violent protests at US embassies and consulates once the Trump administration announces it is moving the embassy in Israel to Jerusalem.

"We were told that this is definitely coming, and we need to be ready for it," one official said.

President Donald Trump could announce as early as Tuesday that the US recognizes Jerusalem as Israel's capital, US officials with direct knowledge of the matter and foreign diplomats have told CNN. Upon making the decision public, Trump is expected to sign a waiver to keep the US embassy in Tel Aviv for another six months, but say his administration will move the diplomatic mission to Jerusalem at some point — a goal long sought by Israel.

The Diplomatic Security Service, which is charged with protecting US posts and personnel overseas, was already bracing for possible protests after Trump retweeted anti-Muslim videos on Wednesday. Officials feared a reprise of the violent protests at US embassies in the Middle East that erupted in September 2012 following the publication of an anti-Muslim video on the internet. Embassies in that region were already on high security alert.

A White House official confirmed that the White House was alerted to those concerns by the State Department.

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