"I proceed from the statements of our president. Indeed, certain information exists, I don’t know how detailed it is, but certain interest exists," Peskov told the Rossiya 1 television channel.
The Russian government will present a report on Saturday to Prime Minister Dmitry Medvedev containing response measures against Turkey.
"You know, we have been receiving many messages from different Turkish public organizations, from the Turkish business associations that work here, which are literally ringing bells of alarm. They ring bells of alarm and cannot answer the question for themselves too – why did [Turkish President Recep Tayyip] Erdogan do this?"
On Tuesday, a Russian Su-24 jet crashed in Syria. The plane was downed by an air-to-air missile launched by a Turkish F-16 jet over Syrian territory, falling 4 kilometers (2.5 miles) from the Turkish border.
Russia has been carrying out an aerial campaign against the Islamic State jihadist group in Syria since late September at the request of Damascus. Moscow has repeatedly called on the UN Security Council to take extra steps to determine who was buying oil from the militants.
Syria has repeatedly accused Turkey, as well as several Gulf states, of funding ISIL.
