US envoy in Kabul to discuss possible prisoner swap

US Secretary of State Marco Rubio stopped short of confirming an exchange would take place, saying Boehler had gone to Kabul to "explore what's possible".

"Our special envoy for people unlawfully detained has been having conversations for a while", Rubio told reporters as he headed to the Middle East.

"Obviously, it'll be the president's decision in terms of any trades or any exchanges, but we most certainly want any Americans or anyone who's being unlawfully detained to be released. And so he went there to explore what that would look like."

At least one US citizen, Mahmood Habibi, is held in Afghanistan. The United States is offering a $5 million reward for information to find him, with the Taliban authorities denying any involvement in his 2022 disappearance.

Another American, airline mechanic George Glezmann, was freed after more than two years in detention during a March visit to Kabul by Boehler.

The US official -- accompanied Saturday by Washington's former envoy to Kabul, Zalmay Khalilzad -- also discussed detainees during a meeting with Afghanistan's Foreign Minister Amir Khan Muttaqi.

"Both sides emphasised that they will continue to discuss various existing and future issues in bilateral relations, especially those citizens who are imprisoned in both countries," government spokesman Hamdullah Fitrat wrote on X.

Dozens of foreign nationals have been arrested since the Taliban returned to power in August 2021 following the withdrawal of the US military.

This week, Moscow announced the release of a Russian ethnologist who had been held for almost two months.

"He had been detained in Afghanistan since July, accused of several offences... and was released by the Afghan authorities at the request of the Russian side, given the friendly relations" with Moscow, the Russian foreign ministry said.

Russia is the only country to officially recognise the Taliban government. 

In January, two Americans were freed in exchange for an Afghan fighter, Khan Mohammed, who was convicted of narco-terrorism in the United States.

The Taliban government says that it wants to have good relations with other countries, notably the United States, despite the 20-year war against US-led forces.

The foreign minister called again on Saturday for a "return to normal relations", saying there were no "irresolvable problems in bilateral relations".

Several countries including Pakistan, China, Turkey, the United Arab Emirates and Iran have kept their embassies open since 2021.

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