Drones have been seized by police after they were flown in breach of airspace restrictions during the Labour Party conference in Liverpool.

Merseyside Police said they seized three drones on Saturday after a temporary airspace restriction covering much of Liverpool city centre was put in place.

The restriction means it is an offence for any unmanned aircraft to fly below 2,000 ft above sea level in the specified area between 10pm on September 20 and 5am on September 26, without the explicit permission of Merseyside Police.

In a post on social media, Merseyside Police said: “We seized three drones in Liverpool today, Saturday 21 September, as they were being flown in breach of restrictions put in place for the duration of the Labour Party conference taking place in the city this week.”

Drone users flying inside the restricted airspace that have not been granted permission could be prosecuted, as well as have their equipment seized and confiscated, police said.

Chief Inspector Iain Wyke, of protective security operations at Merseyside Police, said: “Our policing plans for the Labour Party conference are extensive and take into consideration land, sea and air.

“These airspace restrictions, like other security measures we will have in place such as road closures or patrols on the River Mersey, are aimed at keeping delegates and the wider public safe.”

He added: “Specialist resources, made up of Merseyside Police officers and officers from regional and national teams, including air support, will be in place for the duration of the conference.”

Anyone who wants to seek consideration to fly a drone in the restricted area must obtain permission from Merseyside Police by emailing drone.exemptions@merseyside.police.uk.