ABUJA, June 2 (Reuters) - Nigeria's main labour union said on Friday it plans to go on strike from Wednesday to protest against a tripling of fuel prices in what would be the first big test for new President Bola Tinubu after he scrapped a costly fuel subsidy. The price increase has led to a sharp rise in transport fares and Estonian ride-hailing and food delivery startup Bolt said it had hiked its prices in Nigeria, citing increased operating costs due to higher fuel prices. Nigeria's fuel subsidy cost the government billions of dollars annually but was popular as it helped keep prices low in Africa's biggest oil producer, which is still grappling with high poverty rates among residents. But Nigerian Labour Congress (NLC) president Joe Ajaero, after an emergency meeting of the union's executive council in Abuja, said the state oil company NNPC should reverse the price hike. On Friday, the president said Nigeria needs to review its minimum wage of 30,000 naira ($65).

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Persons: Bola Tinubu, Bolt, Joe Ajaero, Ajaero, MacDonald Dzirutwe, Kirsten Donovan, Angus MacSwan, Aurora Ellis Organizations: Nigerian Bureau, Statistics, World Bank, Labour Congress, Nigeria Labour Congress, Wednesday, Thomson Locations: ABUJA, Nigeria, Abuja