United States Defense Secretary Lloyd Austin arrived in Afghanistan capital on Sunday on an unannounced visit, according to reports in international media.
The Pentagon link chief met with Afghan link Ashraf Ghani, the country's president house said.
Earlier this week, the defense secretary made a scheduled visit to India.
Austin arrived in New Delhi for a three-day visit on Friday, during which he had held talks with Indian Prime Minister Narendra Modi, National Security Advisor Ajit Doval, Defense Minister Rajnath Singh and Foreign Minister Subrahmanyam Jaishankar. The US Department of Defense did not mention its chief's trip to Kabul link in the official agenda.
Washington is reviewing the agreement the Trump administration signed with the Taliban last year.