(CNN) Trump administration officials on Tuesday morning scrambled to finalize an executive order after President Donald Trump said in a late-night tweet he would temporarily suspend immigration to the United States as the nation battles the health and economic effects of the coronavirus pandemic.

"In light of the attack from the Invisible Enemy, as well as the need to protect the jobs of our GREAT American Citizens, I will be signing an Executive Order to temporarily suspend immigration into the United States!" he tweeted.

Officials were still working to draft the executive order, according to an administration official, but hope to have it completed in the next few days for Trump to sign. While the language is still being finalized, the order is expected to temporarily halt the issuance of new green cards and work visas -- steps that had already effectively already been in place amid the coronavirus pandemic.

A second administration official told CNN the executive order will be a "temporary 120 days or so" halt on "some" work visas to mitigate some of the unemployment concerns related to the pandemic.

Other aspects of the order remain unclear inside the administration, including what legal authorities the President will rely upon in the order and what other elements of immigration -- including family immigration and potential exemptions -- might be included.

Read More