Israeli Prime Minister Benjamin Netanyahu reportedly asked U.S. President Donald Trump to allow a convicted spy to immigrate to Israel.

Jonathan Pollard, a former U.S. navy intelligence officer, confessed that he had been spying for Israel between June 1984 until his arrest in November 1985.

Since then, Israel has repeatedly attempted to secure his release through diplomatic channels.

Pollard served 30 years in a U.S. prison and was released in 2015. According to Israeli media, he must now wear a GPS monitoring device at all times and must stay inside his home between 7pm to 7am.

The Israeli prime minister reportedly suggested to Trump that Pollard could be moved to his country with the same conditions and restrictions he’s living under in the United States.

U.S. intelligence officials have long expressed concerns over Washington’s alleged laxity towards Israeli espionage.

Last year, Newsweek quoted an anonymous intelligence officer as saying that U.S. intelligence briefings on Israeli spying were “very sobering... alarming... even terrifying”.

“No other country close to the United States continues to cross the line on espionage like the Israelis do,” the unnamed source added.

The Newsweek reported that U.S. counter-intelligence agents said Israel’s espionage activities in the U.S. were going far beyond that of Washington's other close allies.