BBC NewsCopyright: Thames Water/PA Media
A "massive and disgusting" 10-tonne fatberg has been cleared from a central London sewer.
The mass of fat, grease and "unflushable" items such as wet wipes was blocking a sewer beneath Cadogan Place in Belgravia.
Thames Water engineers dug through 300m (984 ft) of silt and grease to reach the 30m (98 ft)-long fatberg before blasting it with water jets.
The water firm said it had weighed "more than an African elephant".
BBC Radio Guernsey
Guernsey Water has started a new campaign to stop islanders pouring fat down sinks and flushing wet wipes down toilets.
It said such waste products put a great strain on the sewage system and pipes and pumps could block.
General Manager of Guernsey Water Steve Langlois said that, while the island did not have the same same scale of so-called fatbergs as the UK - one measuring 210ft-long was found blocking a sewer in a seaside town in Devon last year - there were issues locally.
He said: "We do have have problems on our own local scale and we're really keen for people to do their bit to prevent these."
- Copyright: Thames Water / PA Media
Two "monster" fatbergs weighing almost 100 tonnes in total have been cleared from sewers in central London.
A huge fatberg weighing 63 tonnes - several tonnes of which was concrete - was cleared from a Pall Mall sewer after being broken up by engineers with power tools and then their hands.
Another which weighed 30 tonnes and stretched 70 metres was removed from the sewers of Cathedral Street, near to Borough Market.
The two fatbergs were threatening to flood homes and businesses with wastewater over the festive period, Thames Water said.
Stephen Pattenden, Thames Water network manager, said: "Fatbergs are like monsters from the deep, lurking and growing under our feet, and the team worked around the clock to defeat these two before they could cause damage to our customers or the environment."
A 40-tonne fatberg has been cleared from a sewer in south-east London.
Engineers took three weeks to clear the mass of fat, grease and other material which was discovered earlier this year clogging up a sewer in Greenwich.
At points the blockage took up 80% of the sewer's capacity, according to Thames Water who removed it.
Matt Rimmer, Thames Water's head of waste networks, called it "a massive and disgusting blockage that took a great deal of effort and teamwork to clear".
"We'd urge everyone to help fight the fatberg by only flushing the 3Ps, pee, poo and paper, as well as disposing of fat and oils in the bin, not the sink," he said.
BBC Radio Devon
The infamous Sidmouth fatberg is expected to be completely removed by the end of the week, staff from South West Water say.
The discovery of the 64m-long mass of hardened, fat, oil, wet wipes and other waste under the Esplanade in the town was revealed in January.
Andrew Rowntree is from South West Water, who is part of the team getting rid of the fatberg, said he hoped the work would be completed by Friday.Copyright: South West WaterQuote Message: We're right at the end of the eight-week period and the last few loads will be going over the course of today and tomorrow [Wednesday and Thursday] ... Pollution risks to the beach have been really high with this thing in place, so it's very good that we've managed to get in and do it at this time of year." from Andrew Rowntree South West Water
BBC One's Blue Planet UK has joined scientists who have been breaking the fatberg down to reveal the culprits behind the blockage it caused.
The £15m cost of removing foul-smelling "rags" of sewer-blocking wet wipes in the East of England.
BBC Radio 5 liveCopyright: South West Water
Workers are continuing to chip away at Sidmouth's "monster" fatberg after removing more than 54,000 litres from a town sewer.
As of Tuesday morning, South West Water (SWW) has loaded up four tankers' worth of the excavated fat, with each trip carrying up to 3,000 gallons, or 13,600 litres.
The 64m-long 'berg was discovered in a sewer under the seaside town's esplanade just before Christmas.
Work was due to begin clearing the congealed fat and wet wipes at the beginning of February but heavy rain raised the water level in the sewer, making it unsafe to start.
Now, though, a SWW spokesman said the company was making good progress due to the recent spell of dry weather.
Samples have also been sent to the University of Exeter for analysis.
The entire removal operation will taken an estimated eight weeks to complete.
Preparations are starting today to clear a massive 'fatberg' found in the sewers in Sidmouth.Copyright: South West Water
The giant fatberg which is 210ft (64m) long was found near the sea.
South West Water (SWW) said the fatberg was the biggest it had found and it would take about eight weeks to remove.
The water firm is at the site today with extraction of the fatberg expected to begin on Wednesday.