Four speeding jet ski riders on Friday escaped the police who chased them along the River Thames.
Officers gave chase after receiving reports that the vessels were "being driven at speed" through London.
A Met Police spokesman said: "Police were called at approximately 18:29hrs on Friday, 03 August to reports of four jet skis driving at speed down the River Thames.
"Officers from the Met’s Marine Policing Unit (MPU) pursued all four jet skis.
"The jet skis were approaching central London and the MPU were able to make them change their course.
"Following this the decision was taken to no longer pursue the jet skis for safety reasons."