A video appears to show Russia using a drone boat to attack a key Ukrainian bridge

• A video appears to show a Russian drone boat or another weapon attacking a key Ukrainian bridge.
• Zatoka bridge, south of Odesa, connects to Moldova and is a key supply route.

A video circulating on social media appears to show a kamikaze Russian drone boat attacking a key Ukrainian bridge connecting to Moldova.

The black and white grainy video shows the small craft speeding towards Zatoka bridge, which is south of Odesa, and as it passes underneath, an explosion takes place.

Smoke can be seen billowing from the bridge, but it is not apparent how much damage was done.

Some analysts on Twitter suggested it was a drone boat carrying explosives, while others suggested it could be an Uncrewed Surface Vessel (USV).

The video, dated Friday, was widely shared by Russian media and pro-Russian Telegram channels.

According to the Daily Mail, Evgeny Poddubny, military correspondent for Russian state broadcaster VGTRK, said: "Almost a year after the start of the special military operation, we have started using marine unmanned drones."

The railway bridge in Zatoka is a gateway - not the only one - for….equipment, ammunition, and Western and Soviet models, which are produced by various former fraternal republics of Eastern Europe."

According to The Telegraph, Russian opposition media confirmed through geolocation that the video does show an attack on the Zatoka bridge. Still, they noted that there had been no reports of damage.

While Ukraine has used drone boats to attack Russian targets in the Black Sea, this may be the first reported use of the weapons by Russia, say reports.

Russia has previously tried to bomb the Zatoka bridge from the air, which was used to deliver supplies to Ukrainian forces through Moldova, but has had limited success.

The attack comes amid reports that Russia appeared to have finally launched its long-feared new offensive in eastern Ukraine.