Romania issued an overnight warning for northern and eastern Tulcea on 6 November after what its Defence Ministry described as Russian attacks on Ukrainian Danube ports. The alert ran from 00:19 to 00:41 local time; no entry into Romanian airspace was reported. [1]

A separate morning alert followed detection of an aerial target east of Sulina heading towards Vylkove in Ukraine. Two Romanian F-16s scrambled from Borcea to monitor it, TVR reported, citing the ministry. The warning was issued at 08:56 and ended at 09:27 local time. [2]