While the United States once again called for immediate release of Raymond Davis who shot dead two Pakistanis, Pakistani Prime Minister Yousuf Raza Gilani said Monday that the decision on whether Davis enjoys diplomatic immunity will be made by the court.

During a meeting with U.S. special Envoy for Pakistan and Afghanistan, Marc Grossman, Gilani said that Pakistan's stance on this issue is based on principles and there can be no negotiations on it, according to local TV channel DAWN news.

He said that the decision regarding Davis' immunity will be made by the court and it should not affect bilateral ties between Pakistan and the U.S..

Gilani also urged the U.S. to provide the remaining amount of aid for Pakistan through the coalition support fund.

Gilani said that Pakistan wants peace in Afghanistan and suggestions for sustainable peace in the region would be welcomed.

Grossman told the prime minister that the stalled aid for Pakistan will be provided very soon. He also appealed to Gilani to release Davis.

Besides, Gilani told reporters the government has adopted a tough stance on the matter of Davis.

During a meeting with Pakistani Minister of State for Foreign Affairs Hina Rabbani Khar, the U.S. envoy reiterated his government's stance about the diplomatic status of Davis and demanded his release without delay.

Raymond Davis, the CIA contractor who shot dead two Pakistanis in the eastern city of Lahore on Jan. 27, told police that he fired in self defence, but the investigators said he intentionally killed the two men.

The U.S. has been demanding release of Davis, saying that he enjoys diplomatic status. But a court in Pakistan on Thursday denied diplomatic immunity to Davis.