Dutch police report city's 2nd alleged terror plot in 2 days Dutch police have arrested a 24-year-old man in the port city of Rotterdam on suspicion of involvement in a "terrorist crime."

THE HAGUE, Netherlands -- Dutch police have arrested a 24-year-old man in the port city of Rotterdam on suspicion of involvement in a "terrorist crime."

Prosecutors said the man was detained Monday and will be questioned in the coming days. They said officers searched his home and seized data storage devices, but didn't find weapons or explosives.

The arrest came two days after police in Rotterdam and the German city of Mainz detained five people for allegedly plotting a terrorist crime. Prosecutors said Monday's case was unrelated.

The five suspects held Saturday remain in police custody. Prosecutors have not elaborated on the nature of the alleged plot.

Police said they didn't see their information from either case as a reason to increase security at a New Year's Eve fireworks show in Rotterdam.