BRUSSELS: US software giant Microsoft Corp is set to secure unconditional EU antitrust approval for its $16 billion bid for artificial intelligence and speech technology firm Nuance Communications Inc, three people familiar with the matter said.

The deal, the latest in the tech industry and Microsoft’s second biggest after its $26.2 billion buy of LinkedIn in 2016, follows heightened regulatory scrutiny of “killer acquisitions” whereby tech giants shut down nascent start-ups and potential rivals after buying them.

Microsoft announced in April the deal that will boost its presence in cloud solutions for healthcare customers in a sector where demand has accelerated during the COVID-19 pandemic.

Nuance, known for pioneering speech technology and helping launch Apple Inc’s virtual assistant, Siri, serves 77% of U.S. hospitals.

The U.S. software giant is in talks with the British antitrust agency ahead of filing a request for approval of the deal, the sources said. The European Commission, which is scheduled to decide on the deal by Dec. 21, declined to comment, as did Microsoft.

The company is also in preliminary discussions with the UK antitrust agency CMA ahead of a formal request for approval of the deal, the sources said.

A spokesperson for the CMA said it doesn’t speculate on which cases it would investigate in the future. Its website does not list the Microsoft deal as one it is looking at.