Pakistani protesters set fire to a NATO flag during a demonstration against the Pakistani government’s plan to reopen NATO supplies route to Afghanistan on May 17, 2012.
Pakistan’s diplomatic and police sources say several Western embassies in Islamabad have received parcels containing a suspicious powder and a letter that threatens to poison US-led NATO forces in Afghanistan unless they stop killing Taliban militants.
"Embassies have received one sachet each...…We are sending it to a laboratory," AFP quoted Islamabad’s police chief Bani Amin as saying.
The letters said the powder was a sample of "poison" that would be hidden in US-led forces supplies if Pakistan reopens NATO supply routes to neighboring Afghanistan that were closed nearly six months ago.
British, French and Australian embassies in the capital Islamabad are among the recipients of the suspicious parcels which might contain poisonous materials inside.
Speaking on condition of anonymity a diplomat at one of the embassies said that they have received a handwritten letter accompanying a “grayish powder in a sealed plastic sachet.”
He said the letter was written in broken English and threatened to avenge militants killed in Afghanistan by poisoning food supplies in the convoys.
The threats come amid speculations that Pakistani government is set to reopen the supply routes which were closed after 24 Pakistani soldiers were killed in US airstrikes in the northwest Pakistan in November 2011.
The incident strained ties between the US and Pakistan as Islamabad has called upon Washington to render an apology which it has refused to do so.
On Wednesday, Pakistani people held protest rallies across the country, asking their government to permanently close the NATO supply lines, which they described as a big threat to the peace and sovereignty of the country.