Armoured vehicles and helicopters take part in the Zapad 2017 war games at a range near the town of Borisov, Belarus September 20, 2017. REUTERS/Vasily Fedosenko

RIGA/BRUSSELS (Reuters) – Moscow was probably behind interruptions in Latvia’s mobile communications network before Russia’s war games last month, in an apparent test of its cyber attack tools, Baltic and NATO officials said, based on early intelligence of the drills.
Russia is suspected of interrupting the mobile network along Latvia’s western coast for seven hours on Aug. 30, NATO diplomats and Latvian security officials said. A communications jammer aimed towards Sweden from Russia’s Baltic outpost Kaliningrad may have been used.
Latvian officials suspect Moscow targeted Latvia’s emergency services’ 112 hotline, which failed for the first time on Sept. 13, just before the most intensive phase of Russia’s biggest war games since 2013, known as Zapad, or West, the officials said.
“Russia appears to have switched on a mobile communications jammer in Kaliningrad, a very powerful one that wasn’t aimed at Latvia, but towards Gotland, the Aland Islands,” said Karlis …
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