A woman from Liverpool believes her sister was on a plane which crashed in Nigeria, killing everyone on board.
Jill Chime told Radio 5 Live's Up All Night programme her family had seen a passenger list which included the name of her sister, Antonia Attuh.
The Foreign Office was unable to confirm whether Ms Attuh was aboard but a spokeswoman said: "It is believed that there was a dual British-Nigerian national on board the flight.
"The Foreign Office has been in contact with a member of her family and offered consular assistance."
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