Residents in the Romanian border communities received air raid alerts amid the attack.Ukraine's Air Force reported it had downed 33 out of the 50 drones launched by Russia overnight on Jan. 16 - 17. Another nine were "lost," and one more drone flew in the direction of Romania, according to the statement.Romania's Defense Ministry said that the Russian drones did not cause any casualties or damage.It was not the first time that wreckage of Russian drones have been found on Romanian territory, which is a NATO country. Russia has repeatedly targeted Ukrainian port infrastructure on the Danube River that separates Ukraine and Romania.In previous incidents, Romania's military scrambled F-16 fighter jets to protect the country's own airspace.The country previously published a draft law that would allow the military to shoot down aircraft that illegally violate Romania's airspace.