Thai police say they were warned by Moscow that 10 Syrians working for the so-called Islamic State (IS) entered Thailand in October to target Russians.
A leaked Thai police memo says the information was passed by Russia’s intelligence agency. More than 1.5 million Russians visited in 2013.
But Thai police say they have not been able to confirm the presence of these Syrians and officials called for calm.
Russia began air strikes against IS in Syria at the end of September.
An IS-linked group also claimed it brought down the Russian airliner which crashed in Egypt’s Sinai peninsula in October, killing all 224 people on board.
‘Everything is safe’
The leaked memo, marked “urgent” and dated 27 November, was from a commander of Thailand’s Special Branch and was sent to police units.
It says Russia’s Federal Security Service (FSB) had told Thai police that the Syrian militants had entered the country between 15 and 31 October to target Russians.
The memo reads: “They travelled separately. Four went to Pattaya, two to Phuket, two to Bangkok and the other two to an unknown location.”
The plan was to target “Russians and Russia’s alliance with Thailand” it says.
The memo calls for increased security around possible targets.
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