"A 150-tonne heavy cementberg blocking parts of London's sewer system, reports several british media."
"the Accumulation is believed to have been formed by residues from the construction sites."
"We are doing everything we can to address this as quickly as we can and ensure that our customers are not affected," says Alex Saunders at the water company Thames water."
"just the cement ports in the city's sewers is not unusual, but the newly-found"
"Big stoppers to be found now and then in the London sewer system. Two years ago it was discovered a "