Nigeria’s economic growth slowed to 2.84 per cent in the third quarter of 2015 from 6.23 per cent a year earlier as a result of lower oil prices, the Nigerian Bureau of Statistics (NBS) said on Tuesday. The NBS said oil production was 2.17 million barrels per day in the third quarter of the year, higher than 2.05 million barrels recorded in the second quarter. Nigeria is struggling with an unprecedented economic crisis due to a plunge in oil revenues undermining the state’s ability to provide even basic services, Senate President Bukola Saraki said on Tuesday. The comments by the country’s third most powerful person are among the starkest from officials on the extent of an economic crisis hitting Africa’s top oil producer.