Russia's Foreign Ministry says it summoned the ambassador from the Netherlands to protest what it alleges was an attempt by British intelligence to recruit the Russian military attache at the Russian embassy in The Hague.
In a statement, the Foreign Ministry in Moscow on October 31 called on Dutch authorities to prevent "countries that the Netherlands calls its allies" from taking such "unfriendly" actions.
It also warned that failing to take action could lead "to a further degradation of bilateral relations."
Russia alleges that on October 20 a representative from British intelligence services tried to recruit the military attache at the Russian Embassy in The Hague.
Neither the Dutch government nor British intelligence has commented on the accusation.