Hsu declined to answer reporters questions as he left one of the Taipei offices of Taiwan prosecutors late Thursday. Calls to the prosecutors office before office hours on Friday were not answered. Taipei prosecutors have not issued any statements so far about their investigations into Gold Apollo.

Taiwan-based Gold Apollo said the devices were made by a Budapest-based company with a license to use its brand.

Taiwan investigators searched four locations yesterday as part of a probe into the origin of pagers that exploded while being used by Hezbollah operatives