U.S. troops have been in Pakistan as recently as Saturday to train Pakistani Special Services Group (SSG) commandos, a U.S. military official said Wednesday. The contingent, consisting of a small number of U.S. military advisers, has been focusing on training the Pakistanis in day and night helicopter air assault operations, the American Television Network "CNN" quoted the official as saying. Training operations have been taking place in northern Pakistan at SSG headquarters near Peshawar, the official said.