Excerpt:
Cologne police are gearing up for one of their largest deployments in recent years after it emerged a new demonstration by the "Hooligans against Salafists" (HoGeSa) group that caused havoc in 2014 would take place on Sunday.
It is not yet known where in the city the HoGeSa demonstrators will gather.
In October 2014, dozens of police officers were hurt when more than 4,000 self-proclaimed hooligans and far-right demonstrators chanting "foreigners out" gathered in the western cathedral city and became violence.