UniCredit SpA has hired Deloitte LLP to advise Italy’s second-biggest bank on its takeover bid for Banco BPM SpA, people familiar with the matter said.

UniCredit's bid for Banco BPM raises concerns about the potential impact of the deal on jobs, the banking sector's main union said on Thursday. "There is great concern about the employment fallout that could result from the deal.

Banco BPM CEO Giuseppe Castagna has raised concerns over potential job losses in the wake of Italian banking group UniCredit's unsolicited takeover bid, reported Bloomberg citing a letter sent to by Banco to its employees.

UniCredit SpA informed top officials in the Italian government and Banco BPM SpA Chairman about its intention to make a takeover bid for its smaller rival before announcing the move on Monday, people with knowledge of the matter said.