Two F-16 jets in eastern Romania were "scrambled on an Air Policing mission to monitor the air situation near the border with Ukraine, following Russian strikes on Ukrainian Danube infrastructure" at 6:05 pm Saturday local time, per a statement from the Romanian defense ministry. The F-16 "detected and tracked" the drone in Romania's airspace from 6:23 pm and radar contact was lost some 12 miles from the small community of Chilia Veche, according to the defense ministry, which emphasized that the drone did not fly over populated areas and "did not pose an imminent threat to the civilian population."
Poland's foreign minister, Radosaw Sikorski, has said last week's Russian drone incursion into Polish airspace was an attempt by the Kremlin to test Nato's reactions by incremental escalations without prompting a full-scale response. Sikorski confirmed that while the drones used in the incursion were capable of carrying ammunition, those that reached Poland were not loaded with explosives. Interestingly, they were all duds, which suggests to me that Russia tried to test us without starting a war, Sikorski told the Guardian in Kyiv.