A “suspicious person” was arrested nearby supposed to be the driver of the truck. A passenger in the truck died at the scene, although it’s not clear how or when that happened yet. Federal prosecutors “handle terrorism cases” but authorities have not yet officially characterized the incident as an attack. considering it could be an accident. However the President-elect Donald Trump called it a “terror attack” and said: “ISIS and other Islamist terrorists continually slaughter Christians in their communities and places of worship as part of their global jihad. These terrorists and their regional and worldwide networks must be eradicated from the face of the earth, a mission we will carry out with all freedom-loving partners.” Police have asked residents to avoid the market area, stay indoors and not spread rumors. The Polish owner of the truck said he feared the vehicle, driven by his cousin, may have been hijacked.