A Swedish court announced on Thursday that it had found two brothers on trial last year, a former bodyguard and a former member of the country’s armed forces, guilty of spying for Russia, Reuters reported.

The two brothers, aged 42 and 35 respectively, were arrested last year and denied all charges against them.

“The court found two brothers guilty of espionage under aggravated circumstances, and the older brother – of unauthorized handling of classified information,” the court in the Swedish capital, Stockholm, announced on Thursday.

It states that a 42-year-old man was sentenced to life imprisonment, and his younger brother – to 9 years and 10 months of imprisonment.

Their trial began last November on charges of providing classified information to Russia’s Central Intelligence Agency (GRU) for more than a decade.

In June of last year, the Ukrainian special services announced the liquidation of the network of GRU agents, which was managed from the Kyiv parliament.

Sweden also arrested two suspected Russian spies last year

Known for centuries for its neutrality, Sweden formally applied last May to join NATO amid security concerns over Russia’s invasion of Ukraine.

The trial of the two men accused of espionage took place mostly behind closed doors due to national security concerns.

The chief prosecutor of Sweden’s national security unit, Per Lindqvist, previously described the case as very difficult to investigate, saying the men were suspected of “extremely serious crimes against Sweden’s intelligence and security system.”

In a separate case, Swedish police arrested two more people suspected of espionage last November.

One of them is suspected of espionage both in Sweden and in another unspecified country. Swedish police did not specify whether the two are citizens of Sweden or another country.

But the Swedish newspaper Aftonbladet wrote that it will be about a married Russian couple in their 60s, owners of a company that manufactures electronic components.

According to Swedish media, the man is suspected of espionage, and his wife is suspected of complicity, Aftonbladet also writes.