Shares in Saudi Arabia's telecommunications firm Etihad Etisalat (Mobily) tumbled to a six-year low as they resumed trading on Monday after the company restated earnings for 27 months and posted a second-quarter loss.

The stock opened 10 per cent lower at SR30.50, its lowest since mid-2009, although it then pared its losses after a few minutes to stand 3 per cent down. Mobily was the most heavily traded stock in the kingdom.

Mobily last week restated results for 2013-14 and the first quarter of 2015, slashing total profits over the period by nearly Sr1.76 billion ($470 million) in its latest attempt to resolve an accounting scandal.

The firm, whose shares had been suspended since June, also posted a net loss of SR900.9 million for the second quarter of this year. -Reuters