Petrol station in Germany.
"The increase in the price of fuel and the conflict have devastated all forecasts."
Queuing had been expected.
Drivers had been waiting for the discount to come into force.
The discount on a litre of fuel came into effect on April 1.
There is a lack of clarity as to how petrol stations are to reimbursed for the discount.
Cut in the price of fuel is imminent.
President Armengol is expected to announce complementary measures on Tuesday.
Measures announced by the government have come as "a pleasant surprise".
"The supply of all kinds of goods is guaranteed."
Spain's prime minister says there is an energy "emergency situation".
The Spanish government is being asked to adopt measures to mitigate the impact of rising fuel prices.
The price of fuel has doubled over the past year.
As you can imagine this latest ‘crisis’ is both alarming and real, unlike some of the other various scare stories that take hold for approximately one week.
Reduced production but a revival in demand has caused prices to rise.