Initially, police suspected that a 25-year-old woman was detained and an 18-year-old man was arrested.
"On site, certain findings are made that lead to suspicion of weapons offences and serious narcotics offences," says police spokesperson August Brandt.
The woman is arrested for the new suspicions and also a man aged 18.
Police also found a suspected dangerous object. The home had to be evacuated and the National Bomb Squad was called to the scene.
"They have been on site and secured the object. I don't have any information on what kind of object it was," says August Brandt.