Nigerian workers took to the streets for a fifth day of strikes over the lifting of a popular fuel subsidy on Friday, after trade unions broke off talks with President Goodluck Jonathan and said they would not restart until Saturday, Reuters reported. The government scrapped subsidies on petrol imports from the beginning of the year, more than doubling the pump price to around 150 naira ($0.93) a litre, and sparking bitter protests across the country. Pressure is mounting on Jonathan to reach a deal. Nigeria's main oil union has threatened to shut down output from Africa's biggest crude producer from Sunday if the government does not reinstate the subsidy. Industry officials doubted unions would be able to stop crude exports completely because much of production is automated and Nigeria has crude stored in reserves, but even a minor outage could have a significant impact on the economy. Tens of thousands of Nigerians have been demonstrating in cities across Africa's most populous nation since Monday after the government said the subsidy was gone for good. Nigeria's main unions said they had "fruitful" talks with Jonathan on Thursday night, leading to media speculation that the two sides might be approaching a compromise. -- SPA