Flight LOT #LO233 to Brussels declared an emergency.
LOT #LO233 from Warsaw to Brussels has declaring an emergency in flight.
The Embraer 190-200 suffered a pressurization issue forcing pilots to descent to 10,000ft.
https://twitter.com/RobertBiedron/status/1485662752744030209
Passenger were asked to breath thru oxygen masks as the flight diverted to Dusseldorf.