Washington: Secretary of State Hillary Clinton's top Afghan Envoy Marc Grossman will visit Kabul to meet President Hamid Karzai and discuss issues including US talks with Taliban and transfer of the Bagaram prison.

"I have made it clear to President Karzai that we will work with him under his leadership. I've asked our Special Representative, Ambassador Marc Grossman, to go to Afghanistan next week to continue our consultations with the Afghans," She said during joint media availability with Qatari Prime Minister and Foreign Minister Sheikh Hamad bin Jassim bin Jabor Al Thani.

Clinton said the US is prepared to support an Afghan-led process of reconciliation, and it will participate in that in support of the Afghans if the Obama Administration believes it holds promise for an end to the conflict.

"So we have worked to help establish a reconciliation process and real negotiations, and we have been very grateful for the assistance that the Government of Qatar has provided. I think the positive statements last week from both President Karzai and the Taliban demonstrate that there is support for such discussions for the political office to open in Qatar," she said.

However, Clinton said it is too early to arrive at a conclusion right now.

"We are still in the preliminary stages of testing whether this can be successful," she said, adding the US remains committed to the red lines, namely that both the Afghan Government and the international community must see the insurgents renounce violence, break with al-Qaeda, and support the laws and constitution of Afghanistan, including protecting the rights of women and minorities.

Grossman would also go to Qatar to continue America's consultations in Qatar.

Responding to questions on opening of Taliban office in his country, the Qatari Prime Minister said Qatar is trying to be peaceful messengers or peaceful ambassadors.

"We are trying to do this with all our capacity," he said.

"That's part of our policy how to defuse the tension in our region. And Afghanistan is not far from our region, and any opportunity we can help our friends to try to find a mutual ground to start a negotiation and dialogue, we think this is the best opportunity to solve the tension in our region," Al Thani said.