An elderly woman who was struck two weeks ago by a police motorcycle escorting Sophie, the Duchess of Edinburgh, has died of severe internal injuries, and the British royal expressed her deep sadness over the incident.
Helen Holland, 81, suffered several broken bones and critical internal injuries when she was struck at a junction in west London on May 10.
Her son Martin Holland announced the death in a statement, reported by the BBC.
"She fought for her life for nearly two weeks but irreversible damage to her brain finally ended the battle today," he said.
He said she had suffered the injuries while "using the safe route of a pedestrian crossing".
Sophie, the wife of Prince Edward, expressed her condolences and sympathies for the death.
"The Duchess of Edinburgh is deeply saddened to hear that Helen Holland has passed away,'' Buckingham Palace said.
"Her Royal Highness's deepest condolences and sympathies go to all of Ms Holland's family."
Ms Holland, from Essex was in London visiting her sister.
An investigation into the crash by the independent office for police conduct is underway.
In a statement on the IPOC's website, it appealed for witnesses to the collision.
"Our investigators attended the scene and the post incident procedures on the night of the collision, where we secured police body worn video which we are reviewing," spokesperson Amanda Rowe said.
"We also oversaw the scanning and mapping of the scene by forensic investigators."
ABC/AP