The news comes just a few years after Louis’ mother, Johannah, died from leukaemia.
The Sun report reads: "Louis has been left 'devastated and distraught' by the death of Félicité, who was last night praised as 'loveable, caring, bright and beautiful' by sources close to the One Direction singer."
A Met Police said: "Police were called by the London Ambulance Service at 12.52pm to a residential address in SW5."
The London Ambulance Service said to Metro.co.uk in a statement: "We were called at 12.51pm. We sent two ambulance crews, a single responder in a car and an advanced paramedic to the scene."
There were resuscitation attempts.
"Sadly, despite efforts of our medics, a person died."