Croydon Council said its plan to use an underground footway in Purley to hold around 600,000 litres of water was approved after its "primary" pond at Purley Depot overflowed on Friday night.
– CROYDON COUNCIL LEADER MIKE FISHER
This has not been an easy decision to take but it has become increasingly clear over the past few hours that we have no alternative if we are to protect people's homes and businesses from being flooded.
Water is being pumped into a pedestrian underpass in Croydon to protect around buildings under threat. The Purley Cross underpass will be turned into an emergency pond as hundreds of thousands of litres of water is pumped into the area.
Authorities hope the move will protect around 400 buildings which are under threat from flooding in Kenley and Purley. They are also trying to protect a water treatment works which supplies tens of thousands of homes.
The people who died after being hit by a train in south London this morning have been named as Donna Oettinger, 41, and her three-year-old son Zachary.
British Transport Police said that the woman killed after being hit by a train in south London was believed to be in her thirties.
Her son, who also died following the collision, is thought to have been three years old.
Senior Investigating Officer Detective Chief Inspector Iain Miller said:
Our thoughts remain with the family and friends of the woman and child involved in this tragic incident.
Officers are continuing to work to establish the full circumstances surrounding the incident, although early indications show that no one else was believed to have been involved.
– Network Rail
Two people were struck by a train at Riddlesdown station just before 8.30am this morning.
The line is currently closed and replacement buses are being used.
British Transport Police are at the station and we will reopen the railway as soon as possible.
Passengers should check National Rail Enquiries before travelling.
The woman and child were killed around two miles south of Purley in south London in the Riddlesdown area near Kenley
A British Transport Police (BTP) spokesman said:
"BTP officers were called to Riddlesdown rail station in Purley on Friday, 22 March after a report that a woman and a child had been struck by a train.
"The incident was reported to BTP at 8.29am and was also attended by Metropolitan Police officers.
"Medics from the London Ambulance Service also attended, but a woman and a child were declared dead at the scene.
"The station has been temporarily closed while officers and medics deal with the incident.
"Enquiries are ongoing to establish the circumstances, and a file will be prepared for the Coroner."
A woman and a child have been killed after they were hit by a train near Purley in south London.