State of emergency declared over US cyber-attack The US government declared a state of emergency on Sunday after the largest fuel pipeline in the US was hit by a ransomware cyber-attack. Popular Searches The Colonial Pipeline carries 2.5 million barrels a day - 45% of the East Coast's supply of diesel, gasoline and jet fuel. It was completely knocked offline by a cyber-criminal gang on Friday and is still working to restore service. The amendment to the Jones Act enables fuel to be transported by road. Experts say fuel prices are likely to rise 2-3% on Monday, but the impact will be far worse if it goes on for much longer.