Ukraine has executed an unprecedented series of attacks on Russian shipping in an attempt to disrupt fuel and logistics supply chains for President Vladimir Putin's military.

Kyiv says its latest drone campaign has struck more than 110 Russian vessels in just nine days, marking one of the most concentrated attacks on commercial and support shipping in modern history.

According to the Financial Times, Ukraine's Unmanned Systems Forces said Tuesday that 11 additional Russian vessels — including five tankers, five cargo ships and a tugboat — were hit overnight, bringing the total to 116 vessels targeted since July 6.

"The goal of the operation is to systematically disrupt the enemy's logistics chain," Ukraine's drone forces said, arguing that disabling tankers and cargo ships will make it harder for Russia to move fuel, ammunition and other supplies to its forces in occupied Crimea and southern Ukraine.

Maritime security analysts told the Financial Times the scale of the operation is unprecedented.

"I cannot stress enough how unprecedented this is," Tomas Alexa of maritime security firm Ambrey said, noting the nine-day campaign has surpassed the concentration of attacks seen during the Iran-Iraq "Tanker War" of the 1980s.

The strikes come as President Donald Trump's administration continues pressing for an end to the more than four-year-old war while urging both sides to negotiate a settlement.

Russia condemned the attacks, with Foreign Minister Sergei Lavrov accusing Ukraine of carrying out "terrorism."

"What the Ukrainian regime is doing goes beyond even piracy," Lavrov said, according to Reuters. "The goal is simply to cause damage and intimidate."

Ukraine rejected that accusation.

A Ukrainian military source told Reuters its forces "strike only military targets or targets that contribute to strengthening Russia's combat capability," adding that civilian cargoes are not intentionally targeted.

Industry sources told Reuters that several grain ships caught fire during attacks earlier this week, while commercial shipping through the Sea of Azov remains heavily restricted.

The waterway handles roughly one-quarter of Russia's grain exports and serves as a key route connecting southern Russian ports with the Black Sea.

Russia's Agriculture Ministry acknowledged exports could be rerouted through Black Sea and Baltic ports if necessary, insisting Moscow will fulfill its grain export commitments despite the disruption.

The campaign also has broader economic implications.

Russia is the world's largest wheat exporter, and grain futures recently climbed to a six-week high amid concerns over supply disruptions.

Ukraine has long accused Moscow of using ports in occupied territory to export grain seized from Ukrainian land.

Russia has responded by increasing attacks on Ukrainian ports.

Ambrey reported Russian strikes Monday night hit four vessels in Ukrainian ports, including a Togo-flagged bulk carrier that caught fire, killing three crew members and seriously injuring four others.

The International Maritime Organization condemned the escalating attacks, warning they endanger civilian mariners, threaten global shipping and further disrupt international supply chains.