The United States Thursday announced that it will withdraw from the United Nations Scientific and Cultural Organization (UNESCO), accusing the body of “anti-Israel bias.”

The State Department spokeswoman, Heather Nauert, said Washington would establish an “observer mission” to replace its representation at the Paris-based agency. According to AFP, the United States was angered since 2011 when UNESCO members granted Palestine full membership of the body despite opposition from its ally Israel.

Ever since the move, Washington had opposed every move by UN bodies to recognize the Palestinians as a state, believing that this must await a negotiated Middle East peace deal. However, US President Donald Trump’s administration is also reviewing many of its multilateral commitments, pursuing what he calls an “America First” foreign policy, which places America’s interest above every consideration.

Nauert said the State Department had notified UNESCO’s outgoing Director-General Irina Bokova of their decision earlier Thursday. “This decision was not taken lightly, and reflects US concerns with mounting arrears at UNESCO, the need for fundamental reform in the organization, and continuing anti-Israel bias at UNESCO,” she said in a statement.

“The United States indicated to the director-general its desire to remain engaged with UNESCO as a non-member observer state in order to contribute US views, perspectives and expertise on some of the important issues undertaken by the organization, including the protection of world heritage, advocating for press freedoms and promoting scientific collaboration and education.”

Meanwhile, The head of UNESCO Irina Bokova voiced “profound regret” on over a decision by the United States to withdraw from the UN culture and education body which she called a “loss to multilateralism”. “I wish to express profound regret at the decision of the United States of America to withdraw from UNESCO,” Bokova said in a statement.

“I wish to express profound regret at the decision of the United States of America to withdraw from UNESCO,” Bokova said in a statement.