Libya’s PM has suspended his foreign minister after she met informally with her Israeli counterpart.
Libya does not recognise Israel, as Tripoli backs the Palestinian cause, and the meeting has sparked protests.
Israel’s Eli Cohen described the meeting with Najla al-Mangoush as a historic first step in establishing relations.
Israel is trying to build closer ties with more Arab and Muslim-majority countries, such as oil-rich Libya.
However Libya’s presidential council, which represents its three provinces, said it was illegal to normalize relations with Israel.
The Speaker’s Office in parliament has accused Ms Mangoush of grand treason, and Prime Minister Abdul Hamid Dbeibah has referred her for investigation.
