Gold investors have gone into wait-and-see mode ahead of an expected interest rate reduction by the Federal Reserve later on Wednesday that will kick off a busy round of policy decisions from leading central banks. Prices were confined to a narrow range near $1 500/oz after a two-day gain following the weekend’s strike against critical oil facilities in Saudi Arabia. The Saudi defense ministry will hold a press conference on the assault that will show evidence of Iran’s involvement, state television reported.