Gold climbed to $1,171.00 (+0.45%), but gains were limited as investors were cautious ahead of Fed interest decision announcement.

Most market participants don't expect the Fed to raise rates at this week's meeting, but they will be looking for signs of readiness to do so in December. Fed policymakers' messages suggest that they have been concerned over slow global economic growth and mixed domestic data. That's why some analysts believe that a rate hike can be postponed till 2016.