BEIJING, Sept 30 (Reuters) - China released three of four Japanese citizens whose detention had added to recent tensions between the two countries, Xinhua news agency reported on Thursday.
Xinhua said the fourth, Sada Takahashi, was still being held for investigation.
The four Japanese employees of Fujita Corp were detained in north China's Hebei province on suspicion of intruding in a militarily restricted zone. Their detention came while Beijing and Tokyo were embroiled in a territorial dispute sparked by Japan's detention of a Chinese fishing boat captain in disputed seas. (Reporting by Chris Buckley; Editing by Ken Wills)