An Etihad Airways Airbus A330-200, flight EY231 from Abu Dhabi (United Arab Emirates) to Islamabad (Pakistan) with 190 passengers, diverted to Karachi after a bomb threat was found in one of the airplane's toilets.
Interesting...this was posted just a day ago or so, asking about that very thing...
http://www.pprune.org/safety-crm-qa/...mb-threat.html