Russia accuses Turkey of shooting down jet to 'defend Isis oil supplies'

'We have received additional data which confirm that Islamic State oil... enters the territory of Turkey'

Footage released on Tuesday shows a Russian Su-24 fighter jet near the Turkey-Syria border after it had been hit by an air-to-air missile fired from Turkish F-16 jets (EPA)

Vladimir Putin says the reason Turkey shot down a Russian jet last week was because it wanted to protect supplies of oil from Isis.

Speaking at the global climate conference in Paris, the Russian President added the decision to shoot down the Su-24 was a "huge mistake".

"We have received additional data which confirm that Islamic State oil... enters the territory of Turkey," Mr Putin said.

"The decision to shoot down the plane was dictated specifically by a desire to defend supplies."

While Turkish officials say the warplane violated Turkish airspace and had been warned repeatedly, Moscow says the aircraft was over Syria, where Russia is carrying out a bombing campaign to support President Bashar al-Assad's forces.

Mr Putin had previously said reconnaisance footage, shared with world leaders at the G20 summit earlier this month, showed oil being smuggled through rebel-held Syria and into Turkey "day and night".

Turkish President Recep Tayyip Erdogan calls claims his country buys oil from Isis "slander".

On Sunday, President Putin signed a decree imposing a number of sanctions against Turkey.