Vinci to buy majority stake in London's Gatwick airport for £2.9 billion

(Reuters) - French construction group Vinci is buying a 50.01 percent stake in London's Gatwick airport, for about 2.9 billion pounds it said on Thursday.The deal would make Gatwick the single largest in Vinci's airport network, which would grow to 46 airports spanning 12 countries, the company said."The transaction represents a rare opportunity to acquire an airport of such size and quality," it said in a statement.The deal follows Vinci's acquisition earlier this year of the airports..