Shares in aerospace giant Boeing fell by almost six percent following reports that regulators plan to keep the company’s fleet of troubled 737 MAX airplanes grounded until June or July, months later than originally expected.

Trading was temporarily halted following the stock plunge. Boeing stock was down 3.3 percent on Wednesday at $313.37 per share, its lowest level in a year.

Boeing’s largest suppliers, General Electric and Spirit AeroSystems, were also down, by 1.2 percent and 3.8 percent respectively. (RT)