Having issued an initial statement blaming the site's unavailability on "heavy network congestion" the stock exchange later confirmed a DDoS attack was responsible for "intermittent access" on Monday evening.

The site is now back up and running while "other systems were not affected during the incident and trading in its securities, derivatives and Islamic markets continue to operate normally".

Last month the Tel Aviv Stock Exchange, Saudi Stock Exchange and the Abu Dhabi Securities Exchange all saw their Web sites disrupted by attacks as part of a wider cyber war in the Arab world.