That allegation has not been proven publicly and the company denies any link to China's government.
Poland also arrested a Polish man "who [formerly] held several top government cybersecurity positions", the Associated Press reported. They reportedly proclaimed their innocence. They took "documents and electronic data" from Huawei's office, said The Wall Street Journal.
Wang reportedly worked at a Chinese consulate in Gdansk from 2006 to 2011, and he's been at Huawei since then. Huawei and Orange could not immediately be reached for comment.
The European Commission will seek information from Poland after national authorities arrested this week a Chinese Huawei employee and a Polish national over espionage allegations. The homes of the men were also searched.
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China's foreign ministry said it was "greatly concerned" by the reports, and urged Poland to handle the case "justly".
Huawei, which also makes smartphones and other consumer devices, issued a statement from its Chinese headquarters saying it was aware of the situation in Poland and was looking into it. The company said it abides by applicable laws wherever it operates and expects employees to do the same.
"ABW (Internal Security Agency) officials conducted actions, as a result of which, we handed over belongings of one of our employees", Orange Polska said in a statement. The company added it did not know if the investigation was linked to the employee's professional work, and that it would continue to cooperate with the authorities.
Huawei has come under intense scrutiny in recent months as countries including Australia, New Zealand and Japan have followed USA moves against the company, citing security concerns.
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The West's security concerns surrounding Huawei, and fellow Chinese telecom equipment firm ZTE Corp, centre around China's National Intelligence Law.
"A Pole and a Chinese citizen have been arrested on suspicion of spying". The US has accused Huawei of potentially building "back doors" into its communications equipment to allow penetration by Chinese intelligence, in a similar manner as Kaspersky allegedly did with its anti-virus software on behalf of Russian intelligence.
Wara said that Norway shares "the same concerns as the United States and Britain" with regards to espionage projects contracted on "private and state actors in Norway".
Two individuals were arrested, the second being a Polish national.
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