A G4S driver has admitted to stealing almost £1 million from one of the firm's vans.
Joel March, of Rectory Grove, in Clapham, is alleged to have fled with deposit boxes after abandoning the cash-in-transit van on Tuesday morning.
The blue armoured van, emblazoned with G4S logos, sat on a double yellow line on Larkhall Rise, Clapham, for eight hours before police were alerted, The Sun reported.
The Metropolitan Police’s elite Flying Squad unit launched an investigation and a 36-year-old man was arrested on suspicion of theft in neighbouring Brixton on Wednesday afternoon.
March appeared at Camberwell Green Magistrates' Court on Thursday, where he admitted one count of theft by employee, prosecutors said.
He will appear at Inner London Crown Court on a date to be fixed for sentencing.
A quantity of cash was recovered and G4S, a major government contractor, said there had been no “material” financial impact from the incident.
A Scotland Yard spokeswoman said: “Police were called at approximately 7pm on Tuesday, 23 April to reports of a theft of cash deposit boxes from a cash-in-transit vehicle.
“Officers attended a location in the Larkhall Rise area of Clapham where the vehicle was parked. There was no sign of forced entry to the vehicle."
A G4S spokeswoman said: “These incidents are extremely rare in our UK cash business and we are working closely with the Metropolitan Police to resolve the matter. The financial impact is not material.”