The Dutch national archive has warned that some of the names included in a new listing of people suspected or convicted of collaborating with the Nazis during World War II may have been added in error.

The list of some 425,000 names has been public since last week, and demand for more information has been so high that no more appointments are currently being made for people who want to view the actual files.

However, according to the Telegraaf, some of the names in the archives are actually those of Dutch Jews who were deported to the death camps.

Historian Karin van Coevorden told the paper that she had found names of her family members who should not have been included and suggested that witnesses may have ended up being listed as suspects.

The archive has now clarified that the index is based on the special legal system’s card files. “This also includes cards of persons who were not suspected or accused, but who nevertheless ended up in the card system,” the archive said.

The archive had previously warned that not everyone in the system had been convicted or was guilty.

A spokeswoman for the archives told the Telegraaf that anyone who finds an error should notify them so the name can be removed.

The original intention had been to put the complete files online, but this was halted due to objections from the Dutch privacy watchdog AP.

From Thursday, people have been able to check to see if names are included in the archives. They must then make an appointment to visit the digital archives in The Hague to view the files online in person.

People who cannot give a good reason why they would want to access the data will not be allowed to do so.