Following an attack at a Christmas market in Magdeburg, Germany, Saudi Arabia claims to have sent warnings about the suspect, Taleb al-Abdulmohsen, which went unacknowledged by German authorities. Al-Abdulmohsen, a former Saudi citizen who received asylum in Germany, has a troubled past involving accusations of people trafficking and extremism. While Saudi officials work to assist the investigation, German authorities face criticism for their oversight in failing to act on the warnings and maintaining security at the market.