SHARE Colonial Pipeline announced late on Wednesday that it had restarted operations of the largest fuel pipeline network in the US, which had been shut down after a ransomware attack, leading to fuel shortages across the eastern US for almost a week. The ransomware attack last week halted 2.5 million barrels per day of fuel shipments. The pipeline stretches 5,500 miles (8,850 kilometres) from US Gulf Coast oil refineries to consumers in mid-Atlantic and south-east states. The company warned that service would still be rocky in the days to come as the pipeline came back online. "Following this restart, it will take several days for the product delivery supply chain to return to normal," a company statement read. "Colonial will move as much gasoline, diesel and jet fuel as is safely possible and will continue to do so until markets return to normal."