London officials discover massive "fatberg" in suburban sewer



LONDON (WITI) -- It's an environmental problem you might not want to know about. A "fatberg" is kind of like an iceberg, but it's made of congealed fat and baby wipes.

The British say this fatberg is the biggest they've ever had -- a 15-ton blob, clogging a sewer in a London suburb.

Sanitation officials are distributing video to get people to think twice about what they flush down the toilet -- because soon they may not be able to flush at all!

Officials say it could take six weeks to clear up the problem.