NEW YORK (MarketWatch) -- Treasury prices fell early Tuesday, pushing yields up, after a U.K. report showed the gross domestic product there grew at twice the pace as economists expected. "The Treasury market was modestly weaker overnight, owing in part to the better-than-forecast U.K. GDP," said strategists at CRT Capital Group. Still to come is the U.S. government's sale of 2-year notes (UST2YR 0.38, +0.02, +4.41%) . Yields on 10-year notes (UST10Y 2.61, +0.05, +1.75%) , which move inversely to prices, rose 4 basis points to 2.60%.