Nov 28 (Reuters) - Russia's Foreign Ministry said on Monday it had summoned the Norwegian ambassador over what it said was the politically-motivated arrest of Russian citizens for using drones illegally, while Norway said the arrests were legal.Several Russian citizens have been arrested by Norwegian authorities for flying drones, coming after the Nordic country boosted security following suspected sabotage on the Nord Stream gas pipelines under the Baltic Sea."It was noted that the sentences against the Russians were politically motivated and had nothing to do with the principles of fair and impartial justice," the Russian foreign ministry said in a statement.Russian flights have been banned from Norwegian airspace since Feb. 28, due to Russia's Feb. 24 invasion of Ukraine."He also reviewed the status of the cases that are now being processed by Norwegian courts," said a spokesperson for the Norwegian foreign ministry."