The Sun newspaper reported Tuesday the footage posted online showed five workers wearing overalls and balaclavas laughing as a South Asian colleague wearing an orange jumpsuit knelt at their feet.
One held a coat hanger as a pretend knife while another held the kneeling man by the shoulders. One employee then yells "Allahu Akbar!" — Arabic for "God is great" — a phrase often used before IS hostages are slain.
HSBC says in a statement it had fired those involved in the "abhorrent" video as soon as the Sun brought it to their attention. The company apologized for any offence the video caused.
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