The German Federal Office for Migration and Refugees (BAMF) reported that in late summer 2023, they received a tip via social media regarding a person involved in the Magdeburg attack, according to the dpa agency.

The officials said Riyadh warned the German authorities the suspected attacker, Taleb al-Abdulmohsen, a Saudi dissident who described himself as an ex-Muslim, had boasted on social media that “something big will happen in Germany”. It was unclear if police ever acted upon the warnings.

German police had been repeatedly warned that a Saudi doctor who is suspected of ploughing a car into crowds at a Magdeburg Christmas market posed a terror threat.