* Chinese cenbank comments spark fears over slower growth
* Stocks, commodities pressured by Federal Reserve talk
* Copper near 3-year low, gold, oil extend losses

LONDON, June 24 (Reuters) - Gold and copper prices fell on Monday and oil prices languished as the prospect of slower growth in China and the U.S. central bank's plans to rein in monetary stimulus worried investors.

Brent crude oil prices slipped below $100 a barrel to their lowest in three weeks, copper hit a near three-year low and gold fell more than 1 percent as investors turned to the safe haven of the U.S. dollar.
The U.S. Federal Reserve has signalled it might rein in its quantitative easing policy while comments from the Chinese central bank have stoked fears it could keep