The Afghan government and the U.S. have reached a deal governing controversial night raids by American forces, both sides said.

A memorandum of understanding on "Afghanization of special operations on Afghan soil" will be signed later Sunday by Kabul's Defense Minister Gen. Abdul Rahim Wardak and the commander of U.S. forces, Gen. John Allen, the Afghan Foreign Ministry said in a statement.

Details were not immediately released, but the name of the memorandum suggests that it will apply to a range of quick-strike raids in villages, not just nighttime operations.

A U.S. military spokesman in Afghanistan confirmed that the agreement would be signed Wednesday but declined to go into details.

"The document will formalize a lot of what we've already been doing as far as special operations," said Col. Gary Kolb. "All the special operations will adhere to the Afghan constitution and comply with Afghan law."