Immigration authorities revoked a record 832 visas in 2018, more than double the figure of a year earlier, Justice Ministry data showed Monday.

The most common reason was ceasing to conduct an activity permitted by the visa category. A further 100 people lost their visa because they obtained it by misrepresentation or fraud.

In 393 cases, or 46.5 percent of total, individuals either remained in Japan after their term expired or they failed to apply to change the visa status within three months of ceasing a permitted activity. Among these were 298 students who dropped out of school but did not leave and technical trainees who stopped showing up to work.