Reports said Netanyahu's wife, Sara, was being questioned at another location. Addressing his supporters, he added: "I want to tell the millions of Israeli citizens who support me and my family: You warm our hearts".
Investigators questioned Israeli Prime Minister Benjamin Netanyahu and his wife Friday as part of their ongoing corruption investigation.
Another, Case 2000, involves an alleged plot to acquire positive coverage in Israel's biggest paper by providing to take steps to curtail the flow of a rival everyday.
Meanwhile, about 70 protesters gathered outside Netanyahu's residence, demanding his resignation.
A statement issued on behalf of the prime minister said that none of this ever took place and that this was a continuation of "tendentious" and "false" leaks against Sara Netanyahu that are aimed at undermining the prime minister and his government.
The Israeli prime minister, in an apparently unrelated case, is also subjected to accusations that he and his spouse misappropriated public funds to pay for private expenses, ranging from laundry to ice cream.
High wind warning issued, with gusts up to 60 miles per hour expected
The National Weather Service is also predicting severe beach erosion for areas of the Eastern Shore and risky marine conditions. Some rain showers are expected before the high-speed winds hit and a high near 46 degrees is predicted for Friday .
Shlomo Filber, a Netanyahu ally for more than 20 years and former director general of the communications ministry, was freed last week after agreeing to turn state's witness in exchange for avoiding jail in Case 4000, police said.
Netanyahu has repeatedly denied wrongdoing in both cases and has questioned the integrity of high-ranking officers handling the investigations, calling the probes a politically motivated "witch hunt".
Police recommended in February that Netanyahu be indicted in two other corruption investigations. In return, police say Netanyahu operated on Milchan's behalf on US visa matters, legislated a tax break and connected him with an Indian businessman.
Eli Kamir, another former Netanyahu adviser arrested last week, was on Wednesday released from police custody but placed under house arrest.
The firm has denied wrongdoing. Political analysts say such support could erode if the investigations against Netanyahu intensify. Netanyahu is suspected of acting to benefit internet giant Bezeq, also owned by Elovitch, for favorable coverage on the news site.
According to police, Hollywood producer Arnon Milchan was responsible for some 750,000 shekels in gifts, while Australian billionaire James Packer provided the other 250,000 shekels' worth.
Prime Minister Benjamin Netanyahu aboard the new submarine "Rahav" at the Israeli navy base in Haifa, on January 12, 2016.