The death toll from a clean-up of a sewer station in the Russian city of Taganrog has risen to 11, with one victim dying at a hospital, RIA Novosti reports.
“One person who was in the intensive care unit has died,” the municipality said in a statement.
There are seven injured in the hospital, one of whom is in critical condition.
Earlier it was reported that workers were poisoned by gas during the repair of the sewer.
An investigation has been launched into the incident.
