Ten-year gilt yields peaked at 1.289 percent at 1442 GMT, their highest level since the country's June 23 referendum decision to leave the European Union and up more than 13 basis points on the day. If sustained, that rise in yields would be the largest since June 2015.
Thirty-year yields also rose strongly, peaking at 1.895 percent, more than 10 basis points up on the day and the highest since June 27.
Official data showed the economy grew by 0.5 percent between July and September, less rapid than the second quarter's strong growth of 0.7 percent but tempering fears about the immediate economic impact of the decision to leave the EU.