"Both men carried out espionage activities against Poland".
An armed officer of the Polish secret service checks a auto entering the government headquarters in Warsaw, Poland, July 7, 2005.
It's the latest setback for Huawei in Europe, where the company has ambitious plans to roll out next-generation "5G" mobile networks, which it is a leader in developing.
A spokesperson for the Chinese Embassy to Poland said the country was "highly concerned about this incident".
Polish authorities detained Wang Weijing and a former Polish security official over the allegations, which could intensify Western security concerns about Huawei and its relations with the Chinese government.
Norway said on Wednesday it was considering whether to join other Western nations in excluding Huawei from building part of the country's new 5G telecoms network.
The accusations add to Huawei's troubles of late as Western governments grow anxious that Huawei's systems could be used by Chinese intelligence.
"We are aware of the situation, and we are looking into it". It said the man also went by the Polish first name of Stanislaw and had previously worked at the Chinese consulate in Gdansk.
He said their apartments and workplaces were searched, adding that the Polish suspect had worked "for several state institutions".
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Stanislaw Zaryn, a spokesman for the Polish security services, said the country's Internal Security Agency (ISA) detained a Chinese citizen and a former Polish security official on January 8 over spying allegations.
Orange Poland told The Associated Press on Friday that officials from Poland's Internal Security Agency searched the company's headquarters in Warsaw on Tuesday and that as part of operation "we handed over belongings of one of our employees".
"We have no information as to whether this is at all related to his work duties". She has been released on bail, but faces a lengthy legal fight over extradition to the US.
China arrested two Canadian citizens nearly immediately after Meng's arrest-Michael Spavor and Michael Kovrig, who are accused of endangering China's national security.
Most of Canada's allies in the Five Eyes intelligence alliance have banned the Chinese telco from their emerging 5G networks, the next evolution in wireless internet technology.
"It's not a good sign when companies have to open their systems for some kind of secret services", he said.
Its media-shy founder, Ren Zhengfei, is also a former engineer in China's army and joined the Communist Party in 1978.
Poland's cyber-security chief, Karol Okonski, told RMF Radio that ideally the European Union and North Atlantic Treaty Organisation would be "as consistent as possible" on Huawei.
The Huawei logo is displayed at a store in Beijing on December 6, 2018.
Spokesman Jake Enwright says Bradley, a former federal Liberal candidate, will continue to assist the company as required as a special adviser.