WASHINGTON (REUTERS) - The United States will not join international talks on Afghanistan organised by Russia this week due to logistical reasons, but is open to participating in the future, the State Department said on Monday (Oct 18).

Moscow is hosting talks on Wednesday with officials from the Taliban, China and Pakistan, Russian President Vladimir Putin's special representative was quoted as saying last week.

"We will not participate in the Moscow talks. The Troika-plus has been an effective, a constructive forum. We look forward to engaging in that forum going forward, but we're not in a position to take part this week," State Department spokesperson Ned Price said.

"It has been effective in the past, it's just logistically difficult for us to take part this week."

Asked if the US supports the process, Price said: "We do."

Moscow hosted a conference on Afghanistan in March at which Russia, the US, China and Pakistan released a joint statement calling on the then-warring Afghan sides to reach a peace deal and curb violence.

Since then, the US and its allies have withdrawn their troops after 20 years on the ground, the Taliban seized power and the previous government collapsed.

The US and other Western countries are grappling with difficult choices as a severe humanitarian crisis looms large over Afghanistan. They are trying to formulate how to engage with the Taliban without granting it the legitimacy it seeks while ensuring humanitarian aid flows into the country.