A top aide to Russian President Vladimir Putin accused Israel’s Mossad spy agency of training Islamic State (ISIS) terrorists, reports Iran’s Press TV.

Alexander Prokhanov was interviewed by the state-sponsored channel. He also claimed US policies in the Middle East spawned the terror group.

“ISIS is a tool at the hands of the United States. They tell the Europeans that if we (the Americans) do not intervene, ISIS will cause you harm,” he told Press TV.

“They launched their first terror attack against us just a few days back in Chechnya,” he added.

Russia is a long-time supporter of both Iran and Syria. Back in September, reported Israel National News, ISIS issued a video threat to Russia.

“Vladimir Putin, these are the Russian planes that you sent to Bashar. Allah willing, we will take them back to your own turf, and liberate Chechnya and the Caucasus, Allah willing… Your throne is being threatened by us,” one terrorist said in the video, which shows the mass execution of 250 Syrian fighters in the Taqba airbase, the last government stronghold in northern Syria to fall to ISIS.

The Jerusalem Post noted that Russia is facing the greatest unrest in Chechnya in over a decade since Putin sent troops to quell an Islamist uprising in the region. Thursday, gunmen attacked a police post and stormed a building in Grozny, the Chechen capital. Ten policemen and ten militants were killed in the fighting.

Prokhanov is not the only Russian with a bone to pick with Israel. Russian officials are demanding an explanation for Sunday’s alleged Israeli air strike on Syrian targets.

“Moscow is deeply worried by this dangerous development, the circumstances of which demand an explanation,” a Foreign Ministry spokesman in Moscow is quoted by the DPA news agency as saying.

Although initial reports claimed there were no casualties in Sunday’s strike, al-Arabiya reported Monday that two Hezbollah operatives were killed in the assault, including a senior military official.