A human rights activist deported by Israel earlier this week has vowed to continue efforts to reverse his expulsion, adding that he will not give up reporting on human rights abuses.

Human Rights Watch (HRW) has asked Israel’s Supreme Court to reconsider the case of Omar Shakir, the watchdog’s Jerusalem-based director who was expelled on Nov. 25, he told Anadolu Agency in a phone interview.

“It’s official: Israel has expelled me over my human rights watch advocacy, joining Syria, Egypt, and Bahrain in barring me access,” Shakir tweeted on Monday.

Read more: Human rights activist vows to fight Israeli deportation