European Shares Decline as Airbus, Tech Stocks, and Merck Weigh Down Market

European shares opened lower on Tuesday, pressured by industrial stocks following Airbus's negative update and a selloff in technology shares tracking Wall Street. The aerospace sector was particularly affected as Airbus shares dragged down the market. Additionally, Merck's performance also contributed to the decline. The STOXX Europe and STOXX 600 indices reflected these declines.