Germany's biggest lender has a "payment capacity" of about 1 billion euros (0.69 billion pounds) to pay interest on so-called Additional Tier 1 (AT1) bonds worth 350 million euros by April 30, the bank said in a statement published on Monday after business hours.

Deutsche Bank said its estimated "payment capacity" for next year is about 4.3 billion euros before 2016 operating results, and mentioned having about 1.6 billion euros in proceeds from the sale of its 19.99 percent stake in Hua Xia Bank.

Frankfurt-based Deutsche Bank said it will also draw on reserves of about 1.9 billion euros "to offset future losses."

Investors' worries are related to European banks' contingent convertible bonds or "CoCo bonds" whose prices have been hammered and prompted hedging via credit default swaps (CDS).

CoCos are bank bonds that share the loss-absorbing characteristics of equity.

(Reporting by Andreas Cremer; Editing by Greg Mahlich)

Stocks treated in this article : Deutsche Bank AG, Hua Xia Bank Co., Limited