BELGRADE: The future of a luxury property development by Donald Trump`s son-inlaw in Belgrade has been thrown into doubt over suspicions that documents used to revoke the site`s protected status were forged.

Jared Kushner`s Affinity Partners signed a 99-year land deal with the Serbian government last year to redevelop the former Yugoslav army headquarters, just months after its designation as a `cultural asset` was removed.

No work has yet started at the site, which has not been rebuilt since it was bombed several times in 1999 during the Nato air campaign that ended the war in Kosovo.But the prosecutor`s office said this week it had opened an investigation into whether the document used by the government to revoke the building`s protected status was forged.

The head of Serbia`s Institute for the Protection of Cultural Monuments, Goran Vasic, was arrested on suspicion of `forgery of an official document` and admitted the charge in court. He was given a restraining order barring him from contacting witnesses, the court said in a statement on Friday.

The government has so far kept tight-lipped about the case, but President Aleksandar Vucic, at a European leaders` summit, denied `any halt to the project plans`.-AFP