KABUL, November 30 (IslamOnline & News Agencies) - Coalition forces in Afghanistan came under rocket fire early Saturday in the latest attack in a month of intensified activity by suspected Al-Qaeda and Taliban allies, a U.S. military statement said.

The statement said two rockets were fired at an airfield in the southeastern province of Khost, which borders Pakistan, leaving one Afghan soldier with hand injuries. No U.S. soldiers were hurt in the attack, reported Agence France-Presse (AFP).

Saturday's attack brings the number of missiles targeting coalition bases in November to 57, markedly higher than previous months. Few missiles have hit their target.

A U.S. military spokesman offered no explanation for the increase in attacks blamed on Al-Qaeda and Taliban forces, possibly allied to former Afghan Prime Minister Gulbuddin Hekmatyar, who are believed to be operating in the border region.

"This is an increase, but not a great increase. I do not really have anything to attribute this increase to other than harassment," Colonel Roger King told reporters Friday.

In another incident, two children were treated for serious landmine injuries sustained near Bagram air base, the nerve center of coalition activities in Afghanistan, north of Kabul.

"The boy, estimated to be nine years old, lost both legs and one arm. The girl, about 12, was treated for shrapnel injuries," the statement said, adding that both were in a stable condition.

Afghanistan is littered with landmines, a legacy of 23 years of conflict, injuring scores of people every month.

On November 25, a volley of rockets was fired at a U.S. outpost in southeastern Afghanistan.

Kabul police chief told IslamOnline that he "thought troops loyal to Islamic Party leader Ghulb Edeen Hikmatyar bear responsibility for the attack", adding that the rockets were fired from an area controlled by Hikmatyar's forces.

Around 10 missiles, nine of which contained flammable white phosphorus, hit a base at Lwara Saturday, close to the border with Pakistan, Colonel Roger King told reporters at Bagram air base, north of Kabul.

"One of the rockets impacted inside the compound causing three small fires which were contained," King said.