Turkey's leadership, including President Erdogan and his family, is involved in illegal oil trade with Islamic State militants, says the Russian Defense Ministry, stressing that Turkey is the final destination for oil smuggled from Syria and Iraq.The Russian Defense Ministry held a major briefing on new findings concerning IS funding in Moscow on Wednesday.According to Deputy Defense Minister Anatoly Antonov, Russia is aware of three main oil smuggling routes to Turkey.Antonov added that Turkey is the main buyer of smuggled oil coming from Iraq and Syria.However, since the start of Russia's anti-terrorist operation in Syria on September 30, the income of Islamic State (IS, formerly ISIS) militants from illegal oil smuggling has been significantly reduced, the ministry said."The income of this terrorist organization was about $3 million per day. After two months of Russian airstrikes their income was about $1.5 million a day," Lieutenant-General Sergey Rudskoy said.At the briefing the ministry presented photos of oil trucks, videos of airstrikes on IS oil storage facilities and maps detailing the movement of smuggled oil. More evidence is to be published on the ministry's website in the coming says, Rudskoy said.The US-led coalition is not bombing IS oil trucks, Rudskoy said.For the past two months, Russia's airstrikes hit 32 oil complexes, 11 refineries, 23 oil pumping stations, Rudskoy said, adding that the Russian military had also destroyed 1,080 trucks carrying oil products."These [airstrikes] helped reduce the trade of the oil illegally extracted on the Syrian territory by almost 50 percent.""According to reliable intelligence reports, the Turkish side has been taking such actions for a long time and on a regular basis. And most importantly, it is not planning to stop them."