NEW : Fuel line from refineries to Paris airports is back on . The fuel lines are now being tested in the French capital and will be used for a few days before they return to normal operations. Demonstrators oppose the government raising retirement age . even verbal violence on his part against some categories of French citizens , '' said Delanoe . Fuel fears arise as refinery workers join strikes .
NEW : Fuel line from refineries to Paris airports is back on . The fuel lines are now being tested in the French capital and will be used for a few days before they return to normal operations. Demonstrators oppose the government raising retirement age . Fuel fears arise as refinery workers join strikes .