The United States and Pakistan are set to sign a document formalizing the passage of NATO supplies for Afghanistan through Pakistan's territory.

A spokesman for Pakistan's Foreign Office, Moazzam Ahmed Khan, told VOA Sunday that the United States and Pakistan have almost completed their technical-level discussions, and that each side is now engaged in the internal processes. A date for signing the memorandum of understanding has not been set.

Khan said discussions with Pakistan's political parties and other stakeholders are part of the procedure the government has to implement before the memorandum is signed.

Some nationalist and conservative groups in Pakistan oppose the government's decision to reopen the supply routes for NATO trucks and containers. The spokesman said Pakistan is a democratic country and every party has a right to express its views.

Islamabad last week reopened the NATO supply line after Washington apologized for the accidental killing of 24 Pakistani soldiers in November airstrike on Pakistan's border with Afghanistan.

Last week, Khan said the NATO supply route was closed to protect the country's sovereignty and integrity. He said the reopening of the route is not aimed at getting more money from NATO.