The NTSB said because the parts were found far from the accident site, they fell off before the crash.

Planes in Poland, Spain, Bulgaria and Italy have been checked for explosives following separate threats.

At least 38 people are killed in 24 hours and Ukraine's Volodymyr Zelensky warns dozens more could be trapped under rubble.

The former European champion and two-time Olympic runner had been diagnosed with stage four bowel cancer.