German shipping lenders Deutsche Bank (DB) and Commerzbank have begun merger talks in a bid to create Europe's second-largest banking group.
Only HSBC would be bigger if the two sides pull off a deal, after confirming discussions this week.
DB said: "In light of arising opportunities, the management board of Deutsche Bank has decided to review strategic options.
"In doing so, the management board of Deutsche Bank is focused on improving the growth profile and profitability of the bank.
