Military aircraft will be carrying out high-speed training exercises over parts of Norfolk next week.
Eight aircraft are due to take part in manoeuvres over areas including Norwich, Thetford Dis and Great Yarmouth.
The exercises will run from Monday to Friday 20th March. Flights will take place from ground level up to 2,000 feet.
Pilots have been alerted through an official notice to airmen covering the region's airspace.