The US citizen was detained at Karachi airport after security staff found :
15 bullets for a 9mm handgun in his luggage :
ahead of a flight to Islamabad.
In 2011 there was furore when CIA contractor Raymond Davis was arrested for :
shooting dead two men :
following what he said was an attempted armed robbery in Lahore.
A court in Pakistan has granted bail to an agent with the US FBI who was arrested for
carrying ammunition while trying to board a flight in Karachi.
The agent was released after paying a bail bond of 1 million rupees ($10,000):
and handed to the US consulate.