Eight crew missing after drone attack leaves tanker ablaze off Romania's coast

Eight of 12 crew members are missing after a tanker caught fire off Romania's coast, naval authorities say, and there are reports of explosions on board.

The San Marino-flagged Wine Trader was 13 nautical miles (24km) east of the mouth of the River Danube at Sulina, when it reported blasts and a fire on Thursday morning.

The west coast of the Black Sea has recently seen a spate of drone attacks, and reports from nearby ships say the tanker was hit by two drones. Russian drones were detected overnight not far from the scene - near Ukraine's Snake Island.

Russia said two cargo ships with military cargo heading to Ukraine's Odesa port were hit during the sea crossing. It did not name the vessels.

On Tuesday, two merchant ships were struck by drones further south along the coast of Bulgaria, Romania's neighbour, and one of the vessels sank leaving 11 crew members missing.

Bulgaria said it suspected Russia was behind that attack, summoning the country's envoy.

A search and rescue operation for the eight missing members of the Wine Trader continues, Romania's authorities have said. Two Black Hawk helicopters and two rescue boats have been deployed.

The Romanian interior ministry has released a video showing one of the helicopters hovering above the vessel.

The priority is now to reach the four crew members confirmed to be alive, while ensuring the safety of rescue teams with very high waves reported in the area.

The tanker, which was sailing from Tunisia to Romania, reported several explosions on board at about 07:00 local time (05:00 GMT).

The presidents of Romania and Bulgaria are due to discuss today whether Article 4 of the Nato treaty should be invoked.

This allows any member of the military alliance to request consultations with its allies if it believes its territorial integrity or security is threatened.

Ukraine has directly blamed Russia for earlier attacks on civilian vessels in the western side of the Black Sea - a key route for Ukrainian exports and imports.

On Tuesday, European Commission President Ursula von der Leyen spoke of the Black Sea becoming "another front of escalation of the Russian war in Ukraine. This is unacceptable".

Russia's military has recently intensified its strikes on vessels in the area, as part of its war against Ukraine.

Last week, another two ships were struck off Bulgaria, and on the same day Ukraine hit an oil tanker in the Russian Black Sea port of Sochi.

Moscow says it is targeting ships delivering weapons and dual-use cargo to Ukrainian ports.

Kyiv and its European allies say merchant vessels carrying grain and other civilian cargo are being attacked.

Both Russia and Ukraine are major grain-exporting countries and Turkey has called on both countries to halt attacks in the Black Sea.

Moscow has repeatedly rejected calls by the US and Europe for a naval ceasefire in the Black Sea, blaming Ukraine for attacking Russian merchant ships in the area.