Prince Harry, his wife Meghan and her mother were involved in a "near catastrophic car chase" involving paparazzi photographers after they attended an awards ceremony in New York, a representative for the prince says.
The incident involved six cars with blacked out windows, driving dangerously and putting the lives of the couple, the Duke and Duchess of Sussex, and Meghan's mother, Doria Ragland, in danger, according to their representative.
"Last night, the Duke and Duchess of Sussex and Ms Ragland were involved in a near catastrophic car chase at the hands of a ring of highly aggressive paparazzi," the couple's representative said in a statement.
"This relentless pursuit, lasting over two hours, resulted in multiple near collisions involving other drivers on the road, pedestrians and two NYPD (New York Police Department) officers."
The couple were shaken by the incident but otherwise unharmed.
The prince has long spoken out about his anger about press intrusion which he blames for the death of his mother Princess Diana, who was killed when her limousine crashed as it sped away from chasing paparazzi in Paris in 1997.
The couple's representative said the chase on Tuesday, after they left the Ziegfeld Ballroom in midtown Manhattan, could also have been fatal and involved paparazzi driving on the sidewalk, running red lights, and driving while taking pictures.
Those involved in the chase were confronted by police officers multiple times, according to the statement.
The New York Police Department said it had assisted the private security team protecting the couple.
"There were numerous photographers that made their transport challenging. The Duke and Duchess of Sussex arrived at their destination and there were no reported collisions, summonses, injuries or arrests in regard," the NYPD said.
The Washington Post quoted taxi driver Sukhcharn Singh, who said he drove the group and a security guard for about 10 minutes before returning to the police station he had picked them up from at the security guard's request.
"I don't think I would call it a chase," Singh was quoted as saying, adding that two vehicles had followed them and come next to the car, taking pictures and filming.
"I never felt like I was in danger. It wasn't like a car chase in a movie. They (the couple) were quiet and seemed scared but it's New York - it's safe."
New York City Mayor Eric Adams said he had received a briefing that two NYPD officers could have been injured in the incident.
"I don't think there's many of us who don't recall how, how his mum died," Adams told reporters.
"And it would be horrific to lose an innocent bystander during a chase like this and something to have happened to them as well."
He said he would be given an in-depth briefing later but that he found it hard to believe there would have been a two-hour high speed chase.
"If it's 10 minutes, a 10-minute chase is extremely dangerous in New York City," Adams said.
The Ms Foundation for Women, the organisers of the awards ceremony where Meghan was honoured for her work, had no immediate comment.
Pictures that have since appeared on social media show Harry, Meghan and her mother sitting in the back of a New York taxi which their representative said showed "a small glimpse at the defence and decoys required to end the harassment".
The couple, who live in California with their two young children, had been staying at a private residence but decided against returning there as they did not wish to compromise their host's safety, according to their statement.