Russians open black box from warplane downed by a Turkish fighter jet

British and Chinese experts have watched as Russian military officials opened the black box of a Russian warplane downed by a Turkish fighter jet last month.

Turkey shot down the Russian Su-24 on a bombing mission in Syria on November 24 after it apparently violated Turkish air space for 17 seconds. Russia insists the plane never entered Turkish air space.

The incident, in which one pilot and a Russian marine with the rescue party were killed, strained the traditionally warm relations between Russia and Turkey, and Moscow promptly slapped economic sanctions on Ankara.