Stoltenberg: NATO will act if Finland, Sweden pressured

STORY: "It is inconceivable that allies would not act should Sweden and Finland come under any form of pressure," Stoltenberg said at a news conference with Swedish Prime Minister Ulf Kristersson.

Stoltenberg also said that all indications were that Iran had been supplying Russia with drones used in a series of recent strikes in Ukraine, though he declined to give details on security grounds.

Tehran denies supplying the drones to Moscow and Russia has denied its forces had used Iranian drones to attack Ukraine.