The phrase "authorities reminded" is correct and usable in written English.
It can be used when referring to officials or governing bodies issuing a reminder or warning about a specific issue or regulation.
Example: "The authorities reminded the public to adhere to safety protocols during the pandemic."
Alternatives: "officials cautioned" or "regulators advised".
As midnight approached, authorities reminded revellers that the show had been cancelled, and the stampede began at around 11.35pm.
Lawyer Gemma Lindfield, on behalf of the Swedish authorities, reminded the court during the hearing it had "already found that Mr Assange is a flight risk".
Authorities reminded drivers to allow extra time in their commutes and to slow down on bridges and ramps that may become icy before roadways.
The authorities reminded her that she was free to leave Myanmar, while restricting visas for her family, calculating that the pain of separation would force her into an impotent exile.
They lobbied local and national authorities, reminding policy makers that Irish craftsmen had constructed these buildings.
They're a cute – but ineffectual – two fingers to the authorities, reminding the Man that the space belongs to the people as well as to him.
Muslims often sacrifice a lamb, whose meat is shared with family members and the poor.In the Brussels suburb of Molenbeek, where the dominant culture is that of Morocco, a circular from the district authorities reminds residents not to kill animals at home.
This week, a group of 47 Republican senators sent an open letter to Iranian authorities reminding them of what they called the technical impermanence of any deal with the Obama administration.
On Oct. 7, McClellan issued orders to his troops to support the proclamation and, in a backhanded nod to civilian authority, reminded them, "The remedy of political error if any are committed" was to be found "at the polls".
Jawawardene exuded calm authority, reminding Swann that he was not content to merely block by taking a step down the wicket and lofting majestically over long-on for six.
The EPA has authority under the Clean Water Act to step in and set revised water quality standards, and the agency reminded WADOE of this in June 2013.
