OSLO, April 13 (Reuters) - Norway is expelling 15 Russian embassy officials that the foreign ministry said on Thursday were intelligence officers operating under the cover of diplomatic positions, a move which Moscow said it would respond to. The expulsions amount to a quarter of Russian diplomats currently accredited in Oslo, the Norwegian government said. It is the latest instance of a Western nation expelling Russian diplomats since the beginning of Moscow's full-scale invasion of Ukraine last year. So far this year, Estonia, the Netherlands and Austria have also expelled Russian diplomats. The Nordic country still seeks to maintain normal diplomatic relations with Russia, and Russian diplomats are welcome in Norway, Huitfeldt said.

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