A tablet computer and government documents were stolen from an official car belonging to Development Secretary Eric Ma Siu-cheung on Tuesday night.
The vehicle, with the licence plate AM 9, was parked outside the Hong Kong Science Museum when the right side back window was broken.
Ma was attending an event nearby. His driver was not present when the break-in occurred.
A briefcase containing the computer and documents was stolen.
Ma was recently appointed development secretary in February after his predecessor Paul Chan Mo-po became the financial chief. The position deals with land policy and often involves the handling of sensitive information.
The Development Bureau said in a statement that a remote command had been given to suspend the operation of the tablet. It also said the documents stolen did not contain citizens’ personal information.
The bureau said it has notified the government security officer and will follow up with the incident in accordance with existing procedures.
In November last year, Ma made a police report after lawmaker “Long Hair” Leung Kwok-hung took documents from him during a panel meeting over the controversial housing programme in Wang Chau, Yuen Long.
Leung was criticising Ma for not failing to present documents relating to a case where a government consultant used restricted government data without authorisation.