A US drone aircraft fired two missiles into Pakistan’s North and South Waziristan tribal region of Pakistan early Thursday, killing seven people.

An unmanned US drone aircraft fired two missiles into Pakistan’s North Waziristan tribal region early Thursday killing seven people, security sources in the region said.

The missiles hit a house at Dande Darpakhel, a border area along with Afghanistan in North Waziristan, where four people have been killed.

The house was also destroyed in the attack which also injured several people, residents said.

The US spy aicraft routinely fire missiles into Waziristan tribal area to target suspected Taliban militants who the CIA blames for carrying out cross-border strikes into Afghanistan.

Residents said they had seen US unmanned aircraft flying before and even after the strike. Residents later arrived at the site and pulled the bodies out of the rubbles.

The second strike occurred in South Waziristan tribal region just few hours after the first strike, killing at least three people. A vehicle came under attack at Bermal area of South Waziristan. A total of 12 people were injured in both strikes.

Local tribesmen said that members of the Haqqani network had been living in Dande Darpakhel area for years but all had left the region as the result of military operation in 2005.

Jalaluddin Haqqani, a former Afghan Jehadi commander and father of Sirajuddin Haqqani, had established religious schools in the area during the 1979-89 Soviet invasion of Afghanistan.

Pakistan is under US pressure to launch major operation against the Haqqani network, blamed for the last year two attacks on US embassy in Kabul and a truck bomb attack on an US military base in Maidan Wardak province.

The fresh drone strike coincided with the visit to Islamabad of US envoy for Afghanistan and Pakistan Marc Grossman who met President Asif Ali Zardari, Prime Minister Yusuf Raza Gilani, Army Chief General Ashfaq Parvez Kayani and Foreign Minister Hina Rabbani Khar.

Sources say that Haqqani network was one of the key issues the two sides discussed.

Allegations by top US officials that Pakistan supported the Taliban-linked Haqqani network in the last month attack on the American embassy in Kabul had caused rift in bilateral relationship.

Pakistan had dismissed the charges of helping the Haqqani network in the Kabul attack as irresponsible.

The US Secretary of Defence Leon Panetta had threatened unilateral action against Haqqani network and other Pakistan-based extremist groups. Pakistan had rejected the threats as contrary to the spirit of cooperation in the war on terrorism.