The Spanish Civil Guard discovered eight migrants hiding inside a scrap metal truck heading to Almeria on Monday, in the port of Melilla.
Footage distributed by the organisation on Tuesday shows the moment the agents find the migrants, as well as images of them emerging out of the heap of scrap metal.
According to reports, the migrants had built small dwellings in the scrap metal and were located by a machine that detects heartbeats.
The Civil Guard reported that the operation took several hours due to the extreme conditions of humidity and heat, which reached 40 degrees Celsius. They also confirmed that everyone was in good condition.