BUDAPEST, Hungary — Firefighters in Hungary have contained a blaze that broke out overnight at the country’s main oil refinery, authorities and Hungarian energy company MOL said Tuesday. No injuries have been reported.

The fire erupted Monday night in a processing unit of the Danube Refinery in Százhalombatta, south of the capital Budapest, MOL said in a statement posted to the Budapest Stock Exchange website Tuesday. The cause of the incident is under investigation.

MOL said emergency protocols were followed and units not affected by the blaze were being gradually restarted as damage assessments continued. The company added that it would focus on ensuring domestic fuel supplies and was considering whether to draw on Hungary’s strategic reserves.

Prime Minister Viktor Orbán said on Tues

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