Germany's No. 2 bank has had such problems in the past, with one in 2019 causing disruptions for eight hours.

Earlier on Wednesday, Commerzbank announced the outage on its Twitter https://twitter.com/commerzbank/status/1557326178855297026?s=20&t=sTd_jhh8mzx32lyFiFYk9A feed, saying it was "working at full speed" for a solution.

(Reporting by Tom Sims and Marta Orosz; editing by Matthias Williams)