How is the Air India investigation unfolding? Why are UK, US involved?

At least 270 people were killed after a London-bound Air India flight, a Boeing 787 Dreamliner (AI 171) crashed at the Ahmedabad airport on June 12 just moments after taking off. The Centre has constituted a high-level committee to examine the causes of the crash and experts from Boeing as well as teams from the UK and the US are aiding the investigation

Explainers