LONDON, Sept 22 (Reuters) - Oil prices fell by more than $2 a barrel on Thursday on concerns measures announced by the U.S. Federal Reserve would be insufficient to boost growth, with U.S. crude futures trading down to $83.88 a barrel.
A stronger dollar also weighed on prices, with the U.S. currency trading 0.75 percent higher against a basket of currencies heavily weighted by the euro early on Thursday. (Reporting by Jessica Donati; editing by Jason Neely)
