Israeli police have arrived at Prime Minister Benjamin Netanyahu's Jerusalem residence to interrogate him over one of several corruption cases that threaten to topple him.

Multiple Israeli media reports said the longtime prime minister was to be questioned over a case of alleged corruption involving Israeli telecoms giant Bezeq.

He could for the first time face questions over information provided to police by Nir Hefetz, a longtime Netanyahu ally who has turned state witness.

Mr Netanyahu's wife Sara and son Yair are also being questioned along with Shaul Elovitch, Bezeq's largest shareholder, Israeli media reported.

A police spokesman confirmed "various investigative activities" linked to the probes, without mentioning the Netanyahus by name.

This is the ninth time Mr Netanyahu has been questioned in various cases directly or indirectly concerning him.

He maintains he is innocent and has denounced allegations against him as a media and police witch-hunt.

In February, police recommended Mr Netanyahu be indicted in two cases, though the attorney general has yet to decide whether to do so.

In the Bezeq case, Mr Netanyahu is alleged to have sought favourable coverage from Mr Elovich's Walla news site in exchange for government policies that may have benefited the mogul's Bezeq company by hundreds of millions of dollars.