The national flag of Canada is seen on top of the Canadian Parliament Buildings in Ottawa, Canada, on May 12, 2023. (PHOTO / AFP)

TORONTO - The finance committee of Canada's House of Commons lower chamber has asked Ottawa to reject Royal Bank of Canada's C$13.5 billion ($9.83 billion) acquisition of HSBC's domestic unit, citing the lack of competition in the country's financial sector.

The committee's report late Wednesday comes weeks after the Competition Bureau approved the transaction, clearing the way for one of the biggest deals in the country's financial sector. However, the deal has gathered opposition.

The deal, which was announced in November 2022, is now in the hands of the Office of the Superintendent of Financial Institutions (OSFI) and Canada's finance ministry. It is expected to close in the first quarter of 2024.

"Removing competition in the financial sector could raise banking fees for Canadians who already pay more for financial services due to an already uncompetitive financial sector," the committee said in the report.

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In this photo taken on Aug 3, 2020, a HSBC logo is pictured on a wall outside a branch of the bank in central London. (PHOTO / AFP)

Pierre Poilievre, Canada's Conservative party leader, has also called for the federal government to reject the deal, saying that blocking the deal is a clear step the government could take to address affordability concerns.

"We strongly believe that RBC's proposed acquisition offers HSBC’s Canadian clients the best possibility for continuity and stability while providing them with innovative made-in-Canada international banking solutions and advanced digital capabilities," an RBC spokesperson said.

The department of finance did not immediately respond to a request for comment.

The last time a deal of this size was attempted in Canada was in the early 1990s, when RBC wanted to acquire rival Bank of Montreal. That acquisition was blocked by regulators.

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The highly regulated Canadian banking sector is active in the mergers and acquisition space as banks seeking growth opportunities look to expand into the United States.