JERUSALEM (JTA) — Three Israeli diplomats have been recalled after they posted political tweets critical of Prime Minister Benjamin Netanyahu and Foreign Minister Avigdor Liberman.

The action against the diplomats came Wednesday, the Israeli news website NRG first reported. They will face disciplinary hearings that could lead to their firing, Reuters reported.

One of the diplomats is Israel’s ambassador to Switzerland, Yigal Caspi. Caspi retweeted Israeli journalists’ tweets critical of the prime minister’s planned March 3 speech on Iran before a joint session of the United States Congress. Another of the diplomats works at the Foreign Ministry in Jerusalem and the last at Israel’s embassy in New Delhi.

All of the Twitter accounts were suspended as of Thursday.

Under Israel’s civil service regulations, civil servants may not make their political views public.