Hampshire Police say they were called at just before 5pm this afternoon after the aircraft came down in a field at the Middle Wallop Army Aviation Centre. The pilot died at the scene and it is believed he was flying alone. Police officers are contacting next of kin.
Specialists from the Air Accident Investigation Branch are working to establish how the accident happened.
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The UK drivers' train union ASLEF has offered to suspend next week's strike action. It comes as fresh talks to end the dispute are agreed.
Tuesday afternoon's weather for the east of the region
Tuesday afternoon's weather for the west of the region