Saudi Arabian billionaire Prince Alwaleed bin Talal was released from detention on Saturday, family sources said, more than two months after he was taken into custody in the kingdom's sweeping crackdown on corruption.

His release came hours after he told Reuters in an interview at Riyadh's opulent Ritz-Carlton hotel that he expected to be cleared of any wrongdoing and be freed within days.

A senior Saudi official said Prince Alwaleed's release had come about after a financial settlement was reached with the attorney general.

"The attorney general has approved this morning the settlement that was reached with Prince Alwaleed bin Talal, and the prince returned home at 11:00 a.m.," the official told Reuters, without giving details on the terms.

Prince Alwaleed bin Talal was first detained at the luxury hotel in early November. (Katie Paul/Reuters )

But the decision to free him, and the release of several other well-known tycoons on Friday, suggested the main part of the corruption probe was winding down after it sent shockwaves through Saudi Arabia's business and political establishment.

Confined to luxury hotel since November

Prince Alwaleed had been confined at the Ritz-Carlton since early November, along with dozens of other senior officials and businessmen, part of Crown Prince Mohammed bin Salman's plan to reform oil superpower Saudi Arabia and consolidate his power.

Earlier this week the attorney general said 90 detainees had been released after having their charges dropped, while others had traded cash, real estate and other assets for their freedom. Authorities were still holding 95 people, he said. Some are expected to be put on trial.

This image shows part of the suite where Saudi Arabian billionaire Prince Alwaleed bin Talal has been detained, at the Ritz-Carlton in Riyadh. (Katie Paul/Reuters)

On Friday, an official Saudi source said several prominent businessmen have reached financial settlements with authorities, including Waleed al-Ibrahim, owner of regional television network MBC, who was released. Terms of his settlement were not revealed.

Saudi authorities have said they expect to raise some $100 billion for the government through such settlements - a huge windfall for the state, which has seen its finances squeezed by low oil prices.

Maintaining innocence

Allegations against Prince Alwaleed, who is in his early 60s, included money laundering, bribery and extorting officials, a Saudi official told Reuters in November.

In his first interview since he was taken into custody, conducted hours before his release, Prince Alwaleed told Reuters that he was continuing to maintain his innocence of any corruption in talks with authorities.

He said he expected to keep full control of his global investment firm Kingdom Holding Co. without being required to give up assets to the government.

The senior Saudi official, asked if the attorney general was convinced of the innocence of Prince Alwaleed, said:

"I will not negate or confirm what he says. Generally this falls back to those who concluded the settlement, and for sure there is no settlement unless there are violations and they are not concluded without the accused admitting it in writing and promising not to repeat it."

Will remain head of holding company

The source declined to give further details, but confirmed that Prince Alwaleed would remain head of Kingdom Holding.

The release of Prince Alwaleed, whose net worth has been estimated by Forbes magazine at $17 billion US, is likely to reassure investors in his global business empire as well as in the Saudi economy broadly.

Directly or indirectly through Kingdom Holding, he holds stakes in firms such as Twitter Inc and Citigroup Inc , and has invested in top hotels including the George V in Paris and the Plaza in New York.

He described his confinement as a misunderstanding and said he supports reform efforts by the crown prince.

No charges, only 'some discussions'

"There are no charges. There are just some discussions between me and the government," he said in the interview.

Prince Alwaleed appeared greyer and thinner than in his last public appearance, a television interview in October, and had grown a beard while in detention.

The prince's suite where he was confined included a large dining room. (Katie Paul/Reuters)

"I have nothing to hide at all. I'm so comfortable, I'm so relaxed. I shave here, like at home. My barber comes here. I'm like at home, frankly speaking," he said.

He granted the 30-minute interview, including a tour of his suite, partly to disprove rumours of mistreatment and of being moved from the hotel to a prison.

The prince said he was able to communicate with family members and executives at his business during his time in detention.

Prince Alwaleed showed off the comforts of his gold-accented private office, dining room and kitchen, which was fully stocked with his preferred vegetarian meals.

In the corner of his office sat tennis shoes, which he said he used regularly for exercise. A television played business news programmes, and a mug with an image of his own face on it was perched on the desk.

After being released, Prince Alwaleed said, he plans to continue living in Saudi Arabia and to return to the challenge of juggling his global business interests.

"I will not leave Saudi Arabia, for sure. This is my country."

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