Since we know nothing about the camera model, it could very well be a classic case of long exposure effect.
I'm fairly confident that everyone remember the infamous "
Popocatépetl Volcano" case
that happened few month ago:
No, it wasn't a "
giant cigar shaped UFO that flied into a volcano", but just a meteor shoot with a special surveillance camcorder that took 1s.
shoots at a high light sensitivity.
Here's the comparative view of the volcano with the two pictures taken at the same time with two different cameras:
This effect is particularly spectacular with still photos:
Source
Source
Source
The last one is just an helicopter flying over the coast with its searchlight on, taken with a 10s. exposure.
Here's how it works:
What our eyes see:
What the camera sees, with a long exposure:
So, for OP's photo, it could also be the case, with one or several trucks or cars for example that slightly moved during the whole shoot exposure.
Some will say: "What we see don't match at all the shape of a truck"...
My answer then is quite simple:
Does this looks like a helicopter?
No, and yet it is one!
Worth a look:
Long Exposure Photography: 15 Stunning Examplesedit
on 8-1-2013 by elevenaugust because: (no reason given)