LONDON, Nov 5 (Reuters) - The merger between Vodafone

and Hutchison's Three UK is likely to be given the go ahead as investment commitments overcome concerns over competition, a British regulator said in a provisional ruling on Tuesday.

The Competition and Markets Authority said the deal had "the potential to be pro-competitive for the UK mobile sector" after the two groups set out plans to protect consumer pricing, and to boost network investment.

(Reporting by Kate Holton; editing by Sarah Young)

((kate.holton@thomsonreuters.com;))