Pakistani Prime Minister Yousuf Raza Gilani on Thursday condemned the US missile attacks targeting militants on its soil by unmanned drones, saying such acts are "intolerable".
Meanwhile, US Ambassador to Pakistan Anne Patterson was on Thursday summoned by the foreign ministry in Islamabad and told such attacks violate Pakistan's sovereignty and should be stopped immediately.
"We condemn such actions. These attacks are intolerable. They are counterproductive. They are increasing our difficulties," Gilani told the National Assembly after members raised the issue of Bannu attack.
A US drone fired missiles on a house in Bannu district in Pakistan's northwest on Wednesday killing at least six people, including one an al-Qaeda leader.
We have lodged a strong protest with the US ambassador over the fresh missile attack, Minister of State for Foreign Affairs Malik Ammad said in the National Assembly.
Pakistan has repeatedly raised objections over US missile strikes in the country's tribal regions but Washington has now expanded strikes to the administrative areas and launched first attack in Bannu.
Gilani also told the House that there is no understanding with the United States over missiles attacks.
"Several members mentioned that there is any understanding with the US. I assure you there is no understanding and if any understanding reached with the US during the period of former President Pervez Mushahrraf, there is no record with the Foreign Ministry and the government."
Gilani said Musharraf was a dictator, army chief as well as the Chief Executive and he had taken all decisions on his own.
"It was a one-man. He (Musharraf) did not discuss issues in the parliament. But we are taking up all issues in the parliament," the prime minister said.
He said the country's National Security Advisor is also in touch with the US to convey concern of the government and the people of Pakistan over the attacks.
Gilani hoped that missile strikes on Pakistani areas will stop after new government takes charge.
"The US government is in transition. It will take few more weeks, that is why such actions are taking place," he said.
"I am sure that when Senator Obama takes charge such actions will be controlled," the prime minister added.