It was at 01 o'clock that the persons, two men in their 45s and 55s and a woman in their 35s, were discovered on military ground.
Several police patrols were alerted to the scene and three people could be arrested.
- They had entered an area where you are not allowed to stay and are now suspected of unlawful intrusion and attempted theft, says Dennis Johansson Strömberg, press spokesperson at the police.
Have they tried to break into a military area?
- That is what we will investigate now, the criminal classifications may change depending on what the further investigation shows.
The 45-year-old man showed signs of being under the influence of drugs at the scene and was allowed to accompany the police for sampling and questioning. He is now also suspected of minor drug offenses for his own use.