0631 GMT - The U.S. dollar rises on the prospect of the Federal Reserve raising interest rates, potentially as early as this month. Fed Chairman Kevin Warsh last week warned of concerns about high inflation, causing investors to increase their bets on a September rate hike. U.S. money markets price a 65% possibility of a rate increase on Sept. 16, LSEG data show. Additionally, a flare-up in hostilities in the Middle East causes oil prices to rise further and boosts investors' appetite for the dollar as a safe haven. The DXY dollar index rises 0.1% at 99.518.