A lawmaker from Pakistan Bajur tribal region said on Friday that an American spy plane fired missiles on three civilians' houses, killing 18 people, including women and children.

"A U.S. spy plane have been flying in the Bajur region for three days. The plane did such flight early morning and bombed three houses of locals in the Damadola village, 50 kilometers away from the Pak-Afghan border," Member of Pakistan's National Assembly from the Bajur tribal region Sahibzada Haroon ur Rashid told journalists on phone from Bajur.

Damadola is around 200 km northwest of the capital, Islamabad.

Rashid said that the plane first threw light and then made a circle around the target and fired eight missiles on the houses of three local tribesmen.

A total of 18 people were killed in the attack which carried out at 3 a.m. on Friday, he said. Four other people, including two children, were injured and they are said to be in critical condition.

Rashid said that no al-Qaeda member or foreign citizen among those died.

"It is inhuman act to kill civilians under the excuse of foreign militants," he said.

"The government should officially condemn U.S. attack," said Rashid.

He said that a big protest rally would be held in Bajur on Saturday to condemn the American bombing. Announcements were made in the area through loud speakers.

All those died were later buried and thousands attended the funeral, said witnesses who attended the funeral.

Shah Zaman, brother of Bakht Pur, whose family died in the bombing, condemned the attack and said innocent people were killed.

"We are innocent but do not know as to why were we targeted," Shah Zaman told reporters after the funeral.

Locals said this is the first incident of its kind of the U.S. attack.

Pakistan's military spokesman Major General Shaukat Sultan and Information Minister Sheikh Rashid Ahmed have said that several people have died in explosions and that investigation into the causes of the incident is being carried out.

The Bajur attack happened few days after Pakistan lodged a protest with U.S.-led forces in Afghanistan about firing in the North Waziristan tribal area last Saturday night that had killed eight people.

Bajur is located in Pakistan's tribal region, bordering Afghanistan's eastern Kunar province. It is reported that Taliban and members of Hizb-e-Islami faction of former Afghan Prime Minister Gulbuddin Hekmatyar are active in the Kunar province.

Source: Xinhua