May 8 (Reuters) - Britain's competition regulator has decided to investigate U.S.-based warehousing firm GXO Logistics' 762 million pound ($952.20 million) buyout of UK peer Wincanton, it said on Wednesday.

($1 = 0.8003 pounds) (Reporting by Eva Mathews in Bengaluru; Editing by Nivedita Bhattacharjee)