Washington (US) – US authorities on Monday seized a laptop computer, other electronic devices, a laptop printer, a printer and two flash drives from the offices of the Washington Metropolitan Area Transit Authority, the agency said in a statement.
The investigation was ongoing.
The laptop was seized from the office of Metropolitan Police Chief Cathy Lanier, the statement said.
The devices were seized after investigators searched a home, where they found three boxes of flash drives and one laptop computer with an undisclosed number of files, including some that were believed to contain sensitive information.
The Metropolitan Police Department said it had opened an internal investigation into the case.
A spokeswoman for the Washington Police Department, which runs the Metropolitan Police Center, declined to comment.
The police department was not immediately available for comment.
A similar incident occurred last year, when officials seized a computer from the police station in downtown Washington after a computer repair firm was sued by the agency.
Officials said they had opened the investigation after receiving a tip about the incident.
They said the laptop was recovered from a vehicle that was parked outside the police headquarters.
The owner of the firm was not injured in that incident.