Image copyrightGetty ImagesUS petrol prices have risen after a key network of pipelines was shut in the wake of Hurricane Harvey, sparking fears of a squeeze on Fuel supplies to major US cities.

US fuel prices have risen by more than 10 cents a gallon compared with a week ago, to nearly $2.45 on average nationwide, according to the American Automobile Association, amid reports that some East Coast refineries were running out of petrol.

The firm's network of pipelines is the country's largest supply system, taking refined fuel from the Gulf of Mexico to consumers in major US cities including New York, Atlanta and Washington DC.

Media captionStorm Harvey: Three factors that came together to bring unprecedented rainfallAt a news conference on Wednesday, Texas Governor Greg Abbott said the state could need more than $125bn (£97bn) from the federal government to help it recover.

Mr Abbott has accepted an offer of aid from the Mexican government, which has suggested it is willing to despatch troops with food, water and medicine - as it did in 2005 when New Orleans was devastated by Hurricane Katrina.