The future of a luxury property development by Donald Trump's son-in-law 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.

Originally published on doc.afp.com, part of the BLOX Digital Content Exchange.