England coach Eddie Jones has claimed his team was spied on in training as the build-up to this weekend's semi-final against New Zealand gets intense.
Jones made the accusation in a Tuesday press conference, a day when he does not usually address the media.
The training was at Arcs Urasayu Park in Tokyo, a field located next to the in-construction Tokyo 2020 Aquatic Centre.
Jones claimed someone was in a nearby apartment block filming England training.
"There was definitely someone in the apartment block [across from the training ground] filming, it might have been a Japanese fan," he said.
"We knew from the start that they were filming and it doesn't change anything we do."
Jones has admitted to spying on opponents in the past but said he hadn't done that in nearly 20 years.
"Everyone knows what everyone else does. There's no surprises in world rugby anymore," he said.
"We used to do it [secretly film opposition training sessions]. I haven't done it since 2001. There's no need.
"You just don't need to do it anymore. You can watch everyone's training on Youtube. There's absolutely no value in that anymore."
Jones also slammed Kiwi media in his press conference, describing reporters as "fans with keyboards" and said pressure would be chasing the All Blacks down the street in the countdown to their Saturday clash.
England takes on New Zealand in their Rugby World Cup semi-final on Saturday October 26 at Yokohama Stadium, kicking off at 5pm local, 7pm AEDT, LIVE on Fox Sports and via RUGBY.com.au RADIO, Rugby Xplorer and Amazon Alexa.