In one case, a coroner in London discovered that the DNA of several bodies had been co-mingled in one of the caskets, Healy-Pratt told UK news agency PA Media.

The son of a woman killed in the Air India plane crash has told the BBC "other remains" were found in her casket after her body was returned to the UK. Miten Patel, whose father also died in the crash, said the coroner identified the mixed-up remains and left him to worry: "How many others are in there?"

The mistakes were found after DNA testing by a coroner in London. The Indian government said bodies of the Flight 171 victims “were handled with utmost professionalism.”