Overview

• The suspect, a radicalized 17-year-old with German nationality, was detained in Elmshorn, Schleswig-Holstein.
• Authorities intercepted communications indicating plans for a truck attack on a crowded Christmas market.
• The German police were warned by U.S. intelligence services earlier this year about the potential threat.
• The plot echoes the 2016 Berlin Christmas market attack, which was claimed by ISIS and resulted in 12 fatalities.
• German officials have heightened vigilance against Islamist threats following recent global and local incidents.