Further to my coverage of reports about Russian private military contractors in Syria, Scott Lucas talked to the BBC World Service on Sunday night about the issue.

Listen to the discussion here:

Read more about the emerging story of Russian private military contractors in Syria:

Russia Spotlight: Are Russian Private Military Contractors Guarding Regime Economic Objectives In Syria?

Syria Special: The Tragi-Comedy of the Failed Mission of Russia’s Military Contractors For Assad

Russia Spotlight: Amended Legislation Targets Russians Fighting In Syria