The use of ground troops in the Syrian conflict could result in world war, according to the Russian prime minister.
Dmitry Medvedev was quoted as saying in an interview in German newspaper Handelsblatt that "a ground operation draws everyone taking part in it into a war".
When asked about a recent proposal from Saudi Arabia to send in ground troops to Syria, the prime minister answered that "the Americans and our Arab partners must consider whether or not they want a permanent war".
Mr Medvedev (pictured) criticised the refusal of Western powers to collaborate with Russia in Syria. The prime minister said ties at the level of defence departments are only sporadic.