[William - stock.adobe.com]
Mexican billionaire Carlos Slim has taken a 3.2% stake in BT Group Plc .
According to a regulatory filing late on Wednesday, the stake - worth around £400m - was taken by Slim's family business Inbursa.
A BT spokesman told the Telegraph: "We welcome any investor who recognises the long-term value of our business.
"We have frequent communication with all of our shareholders and meet with major investors on a regular basis. We look forward to engaging with Inbursa, just as we do with all investors."