Kabul: France's Defence Minister on Sunday backed US efforts to open peace talks with the Taliban, saying a proposed Taliban liaison office outside Afghanistan would provide a venue for those within the radical Islamic movement who are willing to explain their positions.

The idea of opening a Taliban political office in Doha, the capital of the Gulf nation of Qatar, has become the central element of efforts to draw the insurgent movement into peace talks and end more than a decade of war.

Speaking at the end of a brief visit to French troops, Gerard Longuet said he had asked Afghan President Hamid Karzai about the idea.

Karzai "explained the reasons ... for Doha as a venue for meetings where the Taliban who wish to do so can express themselves and meet with Afghans or members of the coalition who wish to talk to them," Longuet said.

"It seems that there is a part among the forces fighting against the (government), there is a will to explain them, to be understood. We should never close that door."

Earlier this week, a senior US official told that Washington plans to continue a series of secret meetings with Taliban representatives in Europe and the Persian Gulf region next year.

The US outreach this year had progressed to the point that there was active discussion of two steps the Taliban seeks as precursors to negotiations, the official said, speaking on condition of anonymity due to the sensitivity of the issue.

Trust-building measures under discussion involve setting up a Taliban headquarters office and the release from the US military prison at Guantanamo Bay, Cuba, of about five Afghan prisoners believed to be affiliated with the Taliban.

Longuet said he was satisfied with the improving performance of the Afghan security forces and the pace of the transfer of responsibility for security to them. NATO and the Afghan government expect the transition to be complete by 2014, when coalition troops are due to end their combat role.

Currently, about 3,600 French soldiers are serving in the NATO force, mostly in northeastern Afghanistan.

Meanwhile, the death of a NATO service member on Saturday in a noncombat incident brought to 544 the number of NATO troops who died in Afghanistan in 2011. A NATO statement provided no further details.