Netanyahu’s bloc is short of a majority as the election committee orders an inquiry into ‘foreign funding’.
Likud and its far-right and ultra-Orthodox allies are short of the 61 needed to govern in the 120-seat Knesset, the BBC reported.
Arab-led parties are heading for a record 19 seats.
As many as 480,000, cast by soldiers, diplomats, hospital patients and others. They could still shift the final seat count.
Election committee chief Justice Noam Sohlberg gave no details. Haaretz cited a source as saying the claim was that Qatar funded efforts to raise Arab turnout.
An attack on democracy aimed at enabling foreign control of the Knesset.
Likud, on the inquiryBalad chairman Sami Abu Shehadeh said the losing side was “constructing a racist blood libel” and calling on the security agencies to overturn the result.
President Isaac Herzog expects official results next week, then will invite the leader with the best chance of forming a government.