BUDAPEST--OTP Bank Nyrt. (OTP.BU) is seeking acquisition targets in Serbia to expand its operations there, Hungary's largest bank by market share confirmed Monday.

OTP Deputy Chief Executive Laszlo Wolf was cited by Serbian news agency Tanjug last week, saying OTP intends to buy a Serbian bank that isn't in state ownership.

OTP is already present in Serbia through its subsidiary OTP banka Srbija a.d. Novi Sad, but it intends to expand its operations there.

OTP is under pressure to boost operations in its non-core markets, as profitability at its Hungarian home market has dropped significantly.

OTP's Hungarian operations have suffered due to a hefty financial sector tax and a government program that allows a one-time repayment of household foreign currency loans at a discount.

Write to Veronika Gulyas at veronika.gulyas@dowjones.com