German authorities have detained a 21-year-old man in Magdeburg suspected of planning an attack targeting large crowds. Officials from Saxony-Anhalt state say the man, originally from Central Asia, may have had an Islamist motivation and is considered a potential danger to the country. Authorities are preparing to deport him based on a prognosis that he poses a terrorist threat. The arrest occurred on the same day that police in Bavaria detained five men accused of plotting a car-ramming attack on a Christmas market, including individuals from Morocco, Syria, and Egypt.