Police questioned Israeli Prime Minister Benjamin Netanyahu Thursday, January 5 for a second time as part of a probe into whether he illegally accepted gifts from wealthy supporters, police said, according to AFP.

According to a statement, investigators questioned Netanyahu for five hours at his Jerusalem residence as part of a corruption probe, the second such interrogation in four days.

The questioning dealt with another affair as well, police said in a statement, adding that a second suspect had been interrogated in the past days.

Netanyahu's office declined to comment.

Netanyahu is suspected of receiving gifts from business people, according to Attorney General Avichai Mandelblit, who is overseeing the investigation. He has provided few other details.

Israeli media reports say he allegedly received tens of thousands of dollars in such gifts.

His first questioning on Monday lasted some three hours.

The probe has shaken the country's political scene and raised questions over whether Netanyahu, 67 and in his fourth term as prime minister, would eventually be forced to resign.

Netanyahu has denied any wrongdoing, saying repeatedly that "there will be nothing because there is nothing".