Chinese authorities have detained a Japanese man in Beijing, Tokyo confirmed Monday, following media reports that a university professor was being held on suspicion of spying.
A top Canadian police intelligence officer has been charged with leaking secret information, authorities said on Friday, in what could be a major security breach.
A court on Friday extended by two months the pre-trial detention of a former US Marine who has been held in Russia on suspicion of spying since December and who accused Moscow prison authorities of injuring him.
An Australian student who was expelled from North Korea denied on Tuesday that he had been spying on the authoritarian state while he lived there.
The Swedish security police Sapo said on Wednesday they have arrested a person on suspicion of spying for Russia.
Canada should ban China's Huawei Technologies Co Ltd from supplying equipment to Canadian 5G networks because the security risk is too great, a former spy chief said in an article published on Monday.
A Chinese executive of Huawei arrested earlier this month in Poland on suspicion of spying said on Friday he was not guilty in the case, which has drawn attention to what some Western countries say is a security risk from the world's biggest telecoms equipment company.
China on Monday urged countries to end "fabrications" about Huawei, after an official in Poland said his country could limit the use of the company's products by public entities following the arrest of a Huawei employee there on spying allegations.
An official source at Qatar's Ministry of the Foreign Affairs has stressed that the ministry is following with great concern media reports that talked about the use of Israeli companies and their technologies
Relations between Moscow and Kiev have been tense since 2014 when a popular uprising drove a pro-Russian president from power.
"Moscow does not accept unfounded accusations that are not based on evidence and a language of ultimatums," Kremlin spokesman Dmitry Peskov told reporters.