Donald Trump says America cannot let Israel be treated with “total disdain and disrespect,” referring to the Iran nuclear deal and a U.N. vote against settlements that the Obama administration declined to veto.

The president-elect wrote on Twitter Wednesday that Israel “used to have a great friend in the U.S., but …not anymore.”

Trump says the nuclear deal was the “beginning of the end and now this (U.N.)!”

He told Israel to “stay strong” because he will be in office soon.

Trump’s comments come amid growing tensions between the U.S. and Israel after Washington abstained from the U.N. Security Council vote condemning the building of Israeli settlements in the West Bank and east Jerusalem.

Secretary of State John Kerry is scheduled to address the issue in a speech later Wednesday.