A Taliban delegation in Moscow said on Friday that the group controlled over 85% of territory in Afghanistan and reassured Russia it would not allow the country to be used as a platform to attack others.

Taliban negotiator Shahabuddin Dilawar says they have “85% of Afghan soil under their control.”

Dilawar also said that the Taliban have controlled all 28 districts of Badakhshan province and only the provincial capital is not in their control. 

Foreign forces, including the United States, are withdrawing after almost 20 years of fighting, a move that has emboldened Taliban insurgents to try to gain fresh territory in Afghanistan.

That has prompted hundreds of Afghan security personnel and refugees to flee across the border into neighbouring Tajikistan and raised fears in Moscow and other capitals that Islamist extremists could infiltrate Central Asia, a region Russia views as its backyard.

At a news conference in Moscow on Friday, three Taliban members sought to signal that they did not pose a threat to the wider region however.

The members said the Taliban would do all it could to prevent Islamic State operating on Afghan territory and that it would also seek to wipe out drug production.

"We will take all measures so that Islamic State will not operate on Afghan territory... and our territory will never be used against our neighbours," a Taliban negotiator Shahabuddin Delawar said through a translator.

The same members said a day earlier that the group would not attack the Tajik-Afghan border, the fate of which is in focus in Russia and Central Asia.

All Afghan border towns taken over by the Taliban will remain active, says Suhail Shaheen, a Taliban negotiator, at a press conference in Moscow. He vowed to address traders' problems.

Moscow has noted a sharp increase in tensions on the same border, two thirds of which the Taliban currently controls, the Interfax news agency cited Russia's foreign ministry as saying on Friday.

Russia's foreign ministry called on all sides of the Afghanistan conflict to show restraint and said that Russia and the Moscow-led CSTO military bloc would act decisively to prevent aggression on the border if necessary, RIA reported.

The Taliban delegation told the same news conference that the group would respect the rights of ethnic minorities and all Afghan citizens should have the right to a decent education in the framework of Islamic law and Afghan traditions.

"We want all representatives of Afghan society ... to take part in creating an Afghan state," said Delawar.

Dilawar says they are in talks with other Afghans to discuss a new system "that should be Islamic, Afghan-inclusive and united."

Meanwhile, the Taliban negotiator Shaheen says that attacking provincial capitals was not part of an agreement with the US, adding that: "but we still did not attack, also we did not launch our spring offensive and it shows our commitment to the agreement."