KABUL — The US-led coalition in Afghanistan said Monday it has found no evidence to support allegations that American special forces were involved in the abuse of Afghan civilians in a restive eastern province that serves as a gateway to Kabul.

The statement came as the Afghan government moved ahead with an order to expel the special forces from Wardak province within two weeks, undeterred by fears the decision could leave the area and the neighboring capital more vulnerable to Al Qaeda and other insurgents.