Taliban fighters could isolate Afghanistan's capital in 30 days and possibly take it over within 90 amid sweeping offensive, according to US intelligence reports.

Taliban fighters patrol inside the city of Farah, capital of Farah province southwest of Kabul, Afghanistan, Wednesday, Aug 11, 2021.
Taliban fighters patrol inside the city of Farah, capital of Farah province southwest of Kabul, Afghanistan, Wednesday, Aug 11, 2021. (Mohammad Asif Khan / AP)

Taliban fighters could isolate Afghanistan's capital in 30 days and possibly take it over within 90, a US defence official cited US intelligence as saying, as the resurgent militants made more advances across the country.

The official, speaking to Reuters on condition of anonymity on Wednesday, said the new assessment of how long Kabul could stand was a result of the Taliban's rapid gains as US-led foreign forces leave.

"But this is not a foregone conclusion," the official added, saying that the Afghan security forces could reverse the momentum by putting up more resistance.

The militants now control 65% of Afghanistan and have taken or threaten to take 11 provincial capitals, a senior EU official said on Tuesday.

US State Department spokesman Ned Price said the attacks were against the spirit of a 2020 agreement.

The Taliban committed to talks on a peace accord that would lead to a "permanent and comprehensive ceasefire," Price said on Wednesday. "All indications at least suggest the Taliban are instead pursuing a battlefield victory. "Attacking provincial capitals and targeting civilians is inconsistent with the spirit of the agreement," he said.

More than 1,000 killed since escalation

The United Nations said more than 1,000 civilians had been killed in the past month, and the International Committee of the Red Cross said that since August 1 some 4,042 wounded people had been treated at 15 health facilities.

The Taliban denied targeting or killing civilians and called for an independent investigation.

The group "has not targeted any civilians or their homes in any locality, rather the operations have been undertaken with great precision and caution," spokesperson Suhail Shaheen said in a statement on Wednesday.

Peace talks

US President Joe Biden said on Tuesday he did not regret his decision to withdraw and urged Afghan leaders to fight for their homeland.

Washington had spent more than $1 trillion over 20 years and lost thousands of US troops, and continued to provide significant air support, food, equipment and salaries to Afghan forces, he said.

The Afghans "need to determine ... if they have the political will to fight back and if they have the ability to unite as leaders to fight back," White House press secretary Jen Psaki said. She declined to comment on the intelligence assessments that Kabul could be overtaken by the Taliban within 90 days, which were first reported by the Washington Post, but said the plan to withdraw troops by August 31 held.

A source familiar with the assessments said they paint a range of possible outcomes including a rapid Taliban takeover, an extended fight and a possible negotiated agreement between the Taliban and current government.

READ MORE:War-weary Afghans struggle to make ends meet as thousands are displaced

New generation

The Taliban advances have raised fears of a return to power of the hardline militants who formed in 1994 from the chaos of civil war.

A new generation of Afghans, who have come of age since 2001, fears the progress made in areas such as women's rights and media freedom will be squandered.

The State Department's Price said the United States was working to forge an international consensus behind the need for a peace accord. The Taliban have captured districts bordering Tajikistan, Uzbekistan, Iran, Pakistan and China, heightening regional security concerns.

He spoke as envoys from the United States, China, Russia and other countries met in Doha with Taliban and Afghan government negotiators in a bid to break a months-long deadlock in peace talks. Pakistani Prime Minister Imran Khan said Taliban leaders told him earlier this year that they will not negotiate with the Afghan government as long as Ghani remains president.

READ MORE: Why is the Taliban looking unstoppable in Afghanistan?

Source: Reuters