This video was sent in to us by Leeds Teaching Hospitals NHS Trust.
The military grade attack helicopter, an Apache, landed on the helipad at Leeds General Infirmary.
A spokesman said: "Leeds has one of the only raised helidecks in the country in a city environment.
"The military uses the helideck to train and the pilot will land for 45 seconds before taking off again.
"It's one thing landing in a desert in Iraq, it's another flying over a busy city.
"We do this on a regular basis because we have the only raised helideck outside London at Leeds General Infirmiary."
The helicopter exercise comes just a week after the last incident. Last week, two Apache military helicopters were spotted landing and taking off at the hospital - which turned out to be a training exercise. http://www.yorkshireeveningpost.co.uk/news/two-apache-helicopters-spotted-flying-over-leeds-city-centre-1-8257434
If you see the helicopters, send your photos and video to @Leedsnews on Twitter