Paris , France ( CNN ) -- Thousands of travelers in France were stranded after lightning shut down a main train station on Saturday , the first day of the summer holiday for students . Lightening struck an electrical facility in Bretigny-sur-Orge , on the outskirts of Paris , forcing the closure of the Austerlitz station and affecting 40,000 travelers , a French National Railway official told CNN . However , traffic at Austerlitz station had resumed as of 6 p.m. ( noon ET ) , CNN affiliate BFM reported , citing officials with railway agency . Electronic repairs on the railway had been completed by the evening , and traffic was expected to run smoothly by Sunday . Earlier , railway officials had warned of delays and encouraged passengers to postpone their trips . Passengers who were unable to take trains Saturday will be issued refunds , BFM reported . The station is used by trains leaving for southern France and Spain as well as commuter service to other parts of Paris .
NEW : Report : Traffic at Austerlitz station resumes . Lightning strikes electrical facility in Bretigny-sur-Orge , outside Paris . Forces closure of Austerlitz station in capital . The station is used by trains leaving for southern France and Spain .