Some airspace in the Middle East is reopening, but missile and drone attacks in major cities from Riyadh to Dubai are leading to fresh intermittent closures.
The Federal Aviation Administration has closed the airspace around El Paso International Airport in Texas for 10 days, grounding all flights to and from the airport.
This thread is updated as new information is emerging.
We are following reports of an accident involving an Boeing 787-8 Dreamliner in Ahmedabad, India. Flight AI171 was a scheduled flight from Ahmedabad (AMD) to London Gatwick Airport (LGW). It was operated by VT-ANB, a Boeing 787-8 Dreamliner built in December 2013.
Boom Aerospace is conducting the second and final supersonic flight with its XB-1 demonstrator aircraft. Two weeks ago, XB-1 became the first civilian aircraft to break the sound barrier since Concorde.