Romania's defense minister, Angel Tilvar, has confirmed that parts of a Russian drone fell on Romanian territory after it had targeted a Ukrainian port on the River Danube, which runs along the border between the two countries.

Tilvar spoke with CNN’s Romanian affiliate A3CNN while visiting the area Wednesday.

The defense ministry had initially denied reports earlier this week that parts of a Russian drone had fallen on the Romanian side of the Danube.

Ukraine's Danube ports have come under heavy and prolonged Russian bombardment in recent weeks, as Moscow targets Ukraine's grain storage facilities and infrastructure after allowing the Black Sea grain deal to lapse in July.

Many of the strikes have landed just across the border from Romania, a NATO member. Romania's defense ministry condemned an attack earlier this week “in the strongest possible terms,” calling it “unjustified and in deep contradiction with the rules of international humanitarian law.”

There were further drone attacks on the Ukrainian side of the river in the early hours of Wednesday, one of them killing an agricultural worker, according to a Ukrainian official.