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This content was produced in Russia where the law restricts coverage of Russian military operations in Ukraine.

MOSCOW, Jan 18 (Reuters) - Russian Foreign Minister Sergei Lavrov said on Wednesday that Moscow would be forced to take unspecified measures on its border if Finland joined the NATO military alliance.

Finland and Sweden have applied to join the bloc and are currently in advanced negotiations over their accession.

Lavrov said Finland had long been a model of friendly relations, but had quickly changed its rhetoric towards Moscow.

He said Russia would therefore have to take "appropriate measures on our borders," if Finland, which shares a 1,300-kilometre border with Russia, did become a NATO member. (Reporting by Reuters Editing by Andrew Osborn)