JERUSALEM - Israeli police investigators on Tuesday questioned Prime Minister Benjamin Netanyahu at his official residence in Jerusalem for the 10th time over corruption allegations.

A police spokesman said the questioning will focus on the so-called "Case 4000," a criminal investigation involving Netanyahu and Shaul Elovitch, a businessman and Netanyahu's associate.

During Netanyahu's stint as communication minister, the ministry allegedly offered financial benefits to Bezeq Telecom, Israel's communications giant controlled by Elovitch.

In return, Netanyahu and his wife, Sara, allegedly received positive coverage in the Walla news site, also controlled by the Israeli businessman.

Elovitch was questioned at the same time in a separate location.

According to Ha'aretz newspaper, Netanyahu is expected to be questioned for the first time over testimonies and records provided by Nir Hefetz, Netanyahu's former close associate and media advisor, and Shlomo Filber, director of the communication ministry during Netanyahu's term. Both have turned state's evidence.

Netanyahu is involved in a series of criminal corruption investigations.

In February, the police said there was enough evidence to charge Netanyahu with bribery, fraud and breach of trust in two other cases.

However, Attorney General Avichai Mandelblit has yet to decide whether to press charges or drop the cases.