The European Union Space Surveillance and Tracking consortium has been tracking a large space rocket (Chinese originating Long March 5B rocket) and estimate it will re-enter earth atmosphere between Saturday 30 and Sunday 31 July.
The potential re-entry path does not bring any debris over the UK, but could impact flights planned through Bulgaria, France, Greece, Italy, Malta, Portugal and Spain.
EASA has issued an alert https://ad.easa.europa.eu/ad/2022-07, and updated re-entry information can be found here. Operators are advised to monitor the situation carefully.
SW 2022/198