The Israeli prosecution rescinded its plea bargain agreement with Shula Zaken, former secretary and confidant of ex-Israeli Prime Minister Ehud Olmert, Israeli media reported on Friday.

Zaken's attorneys reached an agreement with the prosecution, according to which, she will serve one year in prison in accordance with her testimony against former Prime Minister Ehud Olmert.

On Wednesday, following the plea bargain agreement, she was investigated by a special police force about the Holyland affair, in which Olmert is suspected of receiving bribes as mayor of Jerusalem to expedite residential building projects.

The prosecution explained its decision on Thursday night, saying that they had made their decision since Zaken did not offer external evidence to support her claims and since it is late in the case, the verdict is set to be given on March 31, the Walla! News website reported.

That means that her new testimony will stay out of the protocols and her earlier testimony protecting Olmert will remain in place. However, her testimony to the police will be released to the press next week.

Zaken's cooperation with the prosecution might have ended in a conviction against the former prime minister, as she allegedly talked about money transfers she helped take place between Olmert and the contractors.

Ehud Olmert served as Israel's prime minister between 2006 and 2009. He was forced to resign amid corruption allegations that started to surface against him in several cases.

The former premier was also indicted in two more cases of corruption and was acquitted.

Olmert was found not guilty in an affair in July. He was then suspected of receiving illegal donations of hundreds of thousands of US dollars in cash from Jewish American businessman Moris Talansky.

In the "Rishon Tours Affair" he was also acquitted from all charges, including double-billing reimbursement from public organizations on behalf of which he spoke abroad.

Olmert was, however, convicted in another case of irregularities during his tenure as Industry, Trade and Labor Minister between 2003 and 2005. He was accused of securing grants and tax breaks for a long-time colleague and close friend, attorney Uri Messer, and his clients.