Israeli officials on Thursday accused Moscow of responsibility for disruptions to the satellite navigation systems of airplanes flying around Ben Gurion International Airport.
The Russian embassy in Israel dismissed the allegations as "fake news" that they "couldn't respond to seriously."
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Measures have been enacted to allow safe landings and takeoffs, the government said on Wednesday.
The interference¸ according to one Israeli official speaking on condition of anonymity, appears to originate in Syria, where Russian troops and aircraft are fighting with President Bashar Assad.
The announcement by the Israel Airports Authority followed a report on Tuesday by the International Federation of Air Line Pilots' Associations that "many" pilots had lost satellite signals from the Global Positioning System around Tel Aviv's Ben Gurion Airport.
Confirming there had been GPS disruptions for approximately the past three weeks, an IAA statement said these affected only airborne crews and not terrestrial navigation systems.
Israeli authorities had worked from the outset to locate the source of the problem and fix it, it added.
"At no stage has there been a safety incident stemming from the GPS disruption in the context of the precision of navigation and flight corridors," the IAA said.
The IDF said its operations were unaffected.
"The issue is of civilian concern and the IDF provides technological support in order to facilitate freedom of movement within Israel's airspace," an IDF spokeswoman said.
