Israeli Prime Minister Benjamin Netanyahu condemned on Sunday the framework Iranian nuclear agreement being sought by international negotiators, saying it was even worse than his country had feared.

Israel has mounted what it terms an “uphill battle” against an agreement that might ease sanctions on the Iranians while leaving them with a nuclear infrastructure with bomb-making potential. Tehran says its nuclear program is peaceful.

“This deal, as it appears to be emerging, bears out all of our fears, and even more than that,” Netanyahu told his cabinet in Jerusalem as the United States, five other world powers and Iran worked toward a March 31 deadline in Lausanne, Switzerland.

Noting advances made by Iranian-allied forces in Yemen and other Arab countries, Netanyahu accused the Islamic republic of trying to “conquer the entire Middle East” while moving toward nuclearization.