"Right-wing extremists and neo-Nazis have no place in the North Rhine-Westphalian police force, in our police force", Mr Reul said.
The groups were discovered after an officer's phone was confiscated over a suspected media leak, the newspaper reported.
Nearly 30 officers are accused of "sending and receiving right-wing extremist propaganda in at least five private WhatsApp chat groups, which were apparently used exclusively or predominantly by police officers", said Reul, calling it a "disgrace for the NRW police".
Effective July 2018, access to full reports will only be available with a subscription.
Fourteen of them were likely to be sacked, said Reul, with 11 who actively distributed material facing criminal proceedings for alleged incitement. "Why has this been tolerated for years, and by whom?" the politician asked.
"Today, I can no longer speak of individual cases", he said.
It comes amid growing concern that far-right nationalists may be gaining a foothold in Germany's uniformed services.
German police caught sharing images of refugees in gas chamber and black people being shot
Military counter-intelligence in Germany has investigated about 600 troops feared to be involved in far-right extremism. One sergeant major suspected of having extremist links was found to have a cache of weapons in a bunker at his home.
"This news has hit the police at its core".
All accused police officers were suspended on Wednesday and disciplinary measures were taken against them.
The gang, which dedicated 10 racist murders in between 2000 and 2007."NSU 2.0" scandal has actually now seen the "National Socialist Underground" state police chief Nazi Münch resign after it emerged that police computer systems were utilized to learn information of a left-wing political leader who later on got among the threatening e-mails.
In the central state of Hesse, investigators looking into a hate mail campaign against politicians and public figures stumbled upon a chat group used to exchange "extremist" content.
The case emerged a month after Germany's top security official at the federal level, Horst Seehofer, rejected calls for an investigation into the extent of racial profiling by the police, insisting that there was 'no structural problem'.
"The fact that there are, nevertheless, officers who share radical, far-right and xenophobic content in chat groups is unbearable", he added.
Online Sports Betting Market Growth
Benefits With the market high, sports betting is an activity that receives a high level of support from online betting companies. More betters are opting to forego the long lines at the cashier's counter and the unavailability of their favorite machines.
Celebrities Who Suffer With Chronic Diseases
Now if that isn’t the epitome of what a BFF is, I don’t know what is! Selena continues to be on chronic medication. There is also a huge list of celebrities past like famous painter vincent Van Gogh who suffered with this disease.