A Saudi Arabian media campaign targeting the UAE has deepened the Gulf¡¯s worst row in years, stoking fears of a damaging fall-out in the financial heart of the Middle East.

Fiery accusations of rights abuses and betrayal have circulated for weeks in state-run and social media after a brief conflict in Yemen, where Saudi air strikes quelled an offensive by UAE-backed separatists.

The United Arab Emirates is ¡°investing in chaos and supporting secessionists¡± from Libya to Yemen and the Horn of Africa, Saudi Arabia¡¯s Al-Ekhbariya TV charged in a report this week.