According to The Local citing the TT News Agency, Copenhagen police, in particular, ordered the 8-kilometer (5-mile) Oresund Bridge, connecting the Danish capital of Copenhagen with the Swedish city of Malmo, to be closed.
"The only thing I can say at the moment is that we have closed at the request of police," Jens Genders, the spokesperson for Oresund Bridge Consortium, which is operating the bridge, said as quoted by the news outlet.
Following the police announcement, the bridge was reopened in less than an hour.
Denmark's TV2 broadcaster made a similar claim reporting that the step might have been taken amid a pursuit involving one or more automobiles.
The closure of key crossings has resulted in major traffic jams not far from the bridges to Sweden.
Zealand, where over 2.3 million people reside, has the largest territory and the highest population among all of Denmark's islands.