Some gas stations in the United Kingdom had to close temporarily Thursday, after warnings from the government sent panicked residents rushing to stock up on fuel.
British fuel truckers recently threatened to strike over job security and work conditions, which, if carried out, could have a dramatic impact on gas supply.
The government advised Britons to stock up on fuel as a result.
"If they go on strike, the country will have a problem," Transport Minister Mike Penning told BBC television late Tuesday. "Let's be prepared for that in case it happens."
Since then, gasoline sales have surged more than 80 percent.
At some locations in southwest England, lines became so long that police ordered stations to close because of congestion.