Flights out of Sydney Airport have been temporarily put on hold as emergency services respond to reports of smoke in the air traffic control tower.
Passengers travelling from the busy Australian airport can expect delays after 20 people were evacuated from the building on Friday morning.
Emergency services were called to the scene at around 11.40am, but staff have no returned to the tower.
Airservices Australia took to social media to warn people of the situation at hand, claiming smoke had been detected in the area.
“The Sydney Air Traffic Control Tower has been evacuated after smoke was detected,” the government owned corporation wrote in a post on Twitter.
The Sydney Air Traffic Control Tower has been evacuated after smoke was detected. There is a full ground stop in place with no aircraft departing or arriving at this time @SydneyAirport.We will update you as soon as we know more. pic.twitter.com/Riw1l59tDP
— AirservicesAustralia (@AirservicesNews) March 29, 2019
While a full ground stop was initially put in place, the corporation later confirmed some flights had been allowed to land.
“Air Traffic Control in Sydney are now processing arrivals,” an updated post on Twitter read. “Aircraft are landing albeit a slower rate. Nil departures at this time.”
While some media had claimed Sydney Airport was in lockdown, Airservices Australia says that is not the case.
The airport is the busiest in Australia with hundreds of national and international flights arriving and departing every day.