During the interview, Zelenskyy shared a summary of the daily presidential briefing he receives from Ukraine’s spy agencies. The report stated that Russian satellites had taken images of the Prince Sultan Air Base in Saudi Arabia on March 20, March 23 and March 25.

On March 26, Iran attacked the base, which hosts U.S. forces as well as Saudi troops. The strike wounded a number of American service members, two U.S. officials said Friday, though none of the injuries were considered life-threatening.

Zelenskyy said that based on Ukraine’s experience, Russia’s repeated photographing of installations over several days is an indication of attack planning.

“We know that if they make images once, they are preparing. If they make images a second time, it’s like a simulation. The third time it means that in one or two days, they will attack,” he said. The briefing did not include evidence of the Russian satellite imagery or specify how Ukraine became aware of it, and NBC News was unable to verify its accuracy.