The article is in German. Here's a summary:Rheinberg is the first municipality in Germany to cancel its annual carnival parade citing concerns about refugees.
A spokesman said that it cannot be ruled out that refugees might visit the parade and cause incidents similar to those in Cologne.
There are several hundreds of refugees in the city, among them numerous North Africans.
The president of the carnival association organizing the parade stated that there wasn't enough time to comply with the city government's security mandates. "With a heavy heart, we've decided to cancel the event," he said.
The Rheinberg shelter is one of the central refugee facilities of the State of North Rhine-Westphalia. Another reason for tougher security mandates is the fear that "Problematic Groups" from other places might visit the parade.
No idea who these "Problematic Groups" might be. Probably just a PC fig leaf to avoid pinning the blame solely of 'refugees.'