U.S. Secretary of State Antony Blinken on Monday arrived in Doha for talks with the Qatari side after the Taliban claimed to have full control over Afghanistan.

Before his landing, a senior State Department official disclosed that four Americans had left Afghanistan, with Taliban knowledge, in the first departures arranged by Washington since its chaotic military pullout.

"This is the first overland evacuation facilitated by the State Department," the official said, adding that the Taliban were aware of the operation and did not impede safe passage of the individuals.