CNN Arabic and Twitter is reporting that a “Large Russian Ship with several helicopters on the deck” transited Gibraltar overnight.
Could it be the Kuznetsov???
http://arabic.cnn.com/middleeast/2015/11/04/russia-syria-update
I can’t translate it, but this is the link.
Looks like it’s a Udaloy named Vice-Admiral Kulakov.
Background on ship:
https://en.wikipedia.org/wiki/Russian_destroyer_Vice-Admiral_Kulakov