The Israeli Interior Ministry said on Tuesday it had ordered the representative of Human Rights Watch in the country to leave within 14 days, citing his support of boycotts against Israel.
Human Rights Watch, a New York-based rights organization, said the decision shows that Israel seeks to suppress criticism of its human rights record and that it would challenge the decision in court.
Omar Shakir, the group's Israel and Palestine Director, holds U.S. citizenship. He has denied the accusation against him.
Israel last year initially denied Shakir a work permit, in a move criticized by the United States. It later granted him a one-year work visa.
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On Tuesday, Interior Minister Aryeh Deri said he had acted on the recommendation of Strategic Affairs Minister Gilad Erdan, whose office said it had gathered data that Shakir had for years supported a boycott of Israel.
"It is inconceivable that a boycott activist can receive a permit to remain in Israel so that he can act in every possible way against the state. I will use all means to expel such people from the country," Deri's statement said.
Shakir tweeted after the decision: "Breaking: Israel has ordered me deported after compiling 7-pg intel dossier on me. 1st time in @hrw history Israel orders official out. Year ago it denied work permit before reversing, accusing us of 'propaganda.' Now it's BDS. Real aim to muzzle dissent."
He also said, "I have not called for any form of boycott of Israel during my time at Human Rights Watch and the Interior Ministry acknowledged this in its letter to me, in which they informed me of their decision to deny an extension to my work visa."
HRW said it supports Shakir.
"This is not about Shakir, but rather about muzzling Human Rights Watch and shutting down criticism of Israel's rights record," Iain Levine, program director at Human Rights Watch, said in a statement.