According to a Pentagon report Friday, the growth of Al-Qaeda safe havens in Pakistan's tribal areas is "troubling" and warned it may take Pakistan several years to turn around the situation.

The report to Congress by the US Department of Defense said Pakistan increased its troop levels in the border areas by 30,000 last year, and made "significant and costly" efforts to eliminate safe havens.

"It is troubling that despite these efforts, safe havens in the FATA have grown in recent years," the report said.

The Pentagon report noted that 700 Pakistanis have been killed in suicide attacks since July 2007.

It said "Al-Qaeda and other violent extremists continue to hide out in the FATA, where they are able to recruit, train, and target US and western interests, including plots against Europe and the US homeland."

Madrassas, or Islamic religious schools, "continue to promote jihad and martyrdom, and provide potential operatives for acts of violence in Afghanistan," it said.

"Despite successful attacks against some terrorist training facilities in the tribal areas, it is believed other camps remain active and safe havens have grown in recent years," it said.

The report described a six-year US program to help strengthen the Pakistani military and security forces' ability to secure the border with Pakistan {Afghanistan, editor}, but cautioned that it will take time to implement.

"It may be several years before Pakistan's comprehensive strategy to render the remote tribal areas permanently inhospitable to terrorists, insurgents and other violent extremists can be measured for success," the report said.

The United States is helping Pakistan build new training facilities for the Frontier Corps, a poorly equipped tribal force responsible for guarding the border, and is also supporting special forces elements of the Pakistani army, the report said.

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