Livestock producers and food industry groups filed a suit on Tuesday seeking to overturn a U.S. decision to allow higher levels of ethanol in gasoline, saying it could push up food prices.

The Grocery Manufacturers Association, the National Meat Association and other groups sued the Environmental Protection Agency, saying regulators overstepped their authority when they ruled last month that gasoline retailers could sell fuel containing up to 15 percent ethanol, up from 10 percent now. Get the full story »