Organisers of the Tokyo 2020 Olympics and Paralympics said almost 7,000 tickets have been purchased with fake IDs.

During the first phase of the domestic lottery in May, it was discovered that some 30,000 of the official IDs needed to apply for tickets were created with fake information, with close to 1,200 of those winning the rights to purchase tickets.

Organisers of the Japan event, taking place between July 24 and August 9, 2020, have invalidated 6,900 tickets worth $1.6m.

“Tokyo 2020 understands that there have been large-scale purchases following the first wave of the Olympic ticket lottery applications from a large number of IDs registered with false personal information,” the organisers said in a statement.

It added that it was consulting with police and “will continue to monitor illegal applications during the second lottery sale.”

The first lottery sold more than 3.2 million tickets, though more than 7.5 million Japanese people registered their interest in tickets. The second lottery, which had 680,000 tickets available, notified successful applicants on September 11, with about 350,000 tickets bought.

Tickets can only be resold through an official Tokyo 2020 resale site, with organisers warning people that ant tickets bought via other resellers would also be invalidated.