Officials on Wednesday said that the Taliban took control of three more provincial capitals in Afghanistan and a local army headquarters as they completed their attack across the country’s northeast.

According to a news agency report, the insurgents now control around two-thirds of the nation as the US and NATO finalise their withdrawal after a decades-long war there.

As Badakhshan and Baghlan provinces fell in the northeast and Farah province in the west, pressure is mounting on the country’s central government to curb the Taliban gains even it has lost a major base in Kunduz.

The headquarters of the Afghan National Army’s 217th Corps at Kunduz airport fell to the Taliban on Wednesday. This was confirmed by Ghulam Rabani Rabani, a provincial council member in Kunduz, and lawmaker Shah Khan Sherzad.

Afghan President Ashraf Ghani rushed to Balkh province to seek help in pushing back the insurgents from warlords. He also replaced his army chief of staff.

While Kabul has not been directly threatened, the rapid speed of the attacks raise questions of how long the Afghan government can maintain control of its countryside.

The multiple battles have stretched the Afghan government’s special operations forces as the violence has prompted civilians to seek safety in the capital.

The success of the Taliban offensive also calls into question whether they’d ever rejoin long-stalled peace talks in Qatar aimed at moving Afghanistan toward an inclusive interim administration as the West hoped.

In Farah, Taliban fighters dragged the shoeless, bloody corpse of one Afghan security force member through the street, shouting: “God is great!”

“The situation is under control in the city, our mujahedeen are patrolling in the city,” one Taliban fighter who did not give his name said, referring to his fellow insurgents as “holy warriors.”

The insurgents earlier captured six other provincial capitals in the country in less than a week.

(With inputs from Associated Press)