William and Kate were traveling from London to Windsor on Monday when the incident took place on Upper Richmond Road in Richmond,BBC reported.
A spokesperson for Independent Office for Police Conduct explained to that a police motorcycle was involved in a collision with “a woman pedestrian.”
“The woman, in her 80s, suffered serious injuries and was taken to a London hospital where she remains in a serious but stable condition,” IOPC told The Telegraph.
At this time, the IOPC is investigating the incident.
“We are investigating the circumstances surrounding a collision involving a marked police motorcycle attached to the Royalty and Specialist Protection Command and a woman pedestrian on Upper Richmond Road, Richmond, south west London at 12:50 p.m. on Monday 17 June,” IOPC said to The Telegraph.