The Afghan government has said it is confident its own security forces, which took the lead for security in Wardak last December, can deal with the insurgents and stabilize the province.
It is unclear how many of the extremely secretive U.S. special forces are operating in Wardak.
"We never talk about special operating forces. We don't about their numbers either," said Katz.
Afghan forces have been in control of Kabul for years and Katz said then government had assured them that "they are capable enough to provide security" for the capital.
Sher Shah Bazon, a member of the Wardak provincial council, said there were many complaints about Afghan groups working with U.S. special forces, but "we must find a solution for this sort of issue here by talking with the U.S. special forces, which did not happen. Instead a decision was made which I believe most people are not happy with it."
He said that Wardak was so insecure that local officials had problems getting around.
"A district governor or a district police chief in many districts can't go to their offices by road, and if they go they must have a big convoy of security forces with them. So with a security situation like this, the withdrawal of the foreign forces is not a good idea," he said.
Most of the complaints are aimed at the Afghans working with the U.S. special forces, provincial officials said.
"I can say a lack of coordination between the Afghan and foreign forces caused all these problems in Wardak. The withdrawal of the U.S. special forces from Wardak would not be to the benefit of people, government and security of Wardak province. I am sure that would have a negative impact on the security of Kabul city as well," said Mohammad Hazrat Janan, deputy head of provincial council.
Copyright 2013 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.