ExxonMobil has been hit with a worker walkout in Nigeria that reports say has shut its headquarters in the Opec nation after more than 100 employees were fired.

Numerous local and international media reports say the Lagos head office is closed after unionised workers stages a walkout following the dismissal of between 100 and 150 workers.

The action is being led by the union Petroleum & Natural Gas Senior Staff Association of Nigeria (PENGASSAN).

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