A 49-year-old woman from Hoofddorp remains missing four days after her disappearance on her way to work.
Dutch police have arrested a sixth suspect, a 29-year-old man from Beersel, Belgium, in connection with the kidnapping.
Police are asking residents in the area to check and submit any relevant footage from doorbell or security cameras that may aid the investigation.
The woman's car was found, but she has not been seen since her disappearance on Wednesday morning.
Author's summary: Sixth suspect arrested in kidnapping case.