Four unidentifiable objects in a photograph that I took in Mexico City.I did not actually see the aircraft until after I looked at the pictures I had taken from my hotel window in Mexico city. These pictures were taken over the horizon behind Mexico's national auditorium in Mexico City. I think its over the North-Eastern sky.((FOLLOW-UP CORRESPONDENCE WITH WITNESS))Dear Mr. ((name deleted)), Thank you very much for the photograph, but what were the circumstances surrounding the event, please? For example, did you see the objects at the time of the photo? Did others see the objects, too? What type of camera was used, please? When was the photo taken? Were you photographing through a window, by any chance, or were you outdoors, at the time? If you would like to share the details of the event, I would like to invite you to submit a short, summary report, using the Online Report Form on our website. Thank you very much for sharing the information with our Center! Cordially, Peter B. Davenport, Director2ND LETTER--Thank you for the prompt response!Could the "objects" be reflections of ceiling lights behind the camera, do you think? We receive many of those.Peter((END CORRESPONDENCE))((RESPONSES FROM WITNESS))1) I filled out the form just a bit ago. And yes, it was through my hotel window last Saturday around dusk, 17:00 approximately.2) There were absolutely no ceiling lights in the room. The hotel is one of those typical 3rd world type buildings that only has lights on tables or the walls. The camera used is a Sony Snapshot digital.((END RESPONSES((NUFORC Note: If the objects are not reflections, then they are somewhat interesting. However, without testimony from other witnesses, it probably would be impossible to determine what the objects are, I believe. PD))