Unkown yugoslavian ships

[geosub1978]

Hello! I wish Happy New Year to everyone!

So, I have a question for good resolvers.
At midnight of 16 to 17 December 1940 the greek submarine Triton detected two ships illuminating navigation lights while patroling along the southern yugoslavian coast. They were near the yugoslavian ports of Bar and Ulcinj.
Is there realy anyone who could identify those ships or point where to look at perhaps?

Thank you

George

[geosub1978]

Edit: Triton was on patrol and reported those ships as "steamers"