Hi Jimbo, you say it was one week ago.
First, find out if he has been seen medically! With the sexually transmitted diseases that can kill him, This is most important! The sooner the better. Here is the bad news, he will not want to go, so you are going to have to do what ever it takes to get him there! This could be his life we are talking about!
About the rape, and why it likely happened. People who steal, have learned that if they rape the person, the odds are very good that the robbery will not be reported, or will be reported so late that the robber will be long gone.
Being that this just happened to him he is still in a state of shock, but the shame is already starting to take hold, the sooner you can find a therapist for him the better. If all you can find is female rape therapist, then that is ok for now. Find one that will take him for now. He can still benefit, if the therapist can get him to talk about it.
How is male rape different from female rape? Read and let your boyfriend read this, Male Rape
A book you need to get your hands on is Recovery by Helen Benedict
There may be better books out there on rape but this is the one that I read. It talks about the rape, and what it did to him, and what he will be going through in the near future. It also will help you, to better understand what he is going through.
If possible get your boyfriend to come to the here, and start reading, and may be later he can start to talk to us about this terrible thing that happened to him.
I tried searching on the internet, but did not find anyone. But I did find this article on Morocco, that talks some about what gay men there have to do. Maybe one of the doctors that wrote it can be of some help. The International Encyclopedia of Sexuality: Morocco