Officers are currently at the scene of an armed incident in Spring Hill, Northiam.
One person has suffered a gunshot wound and has been taken to hospital for treatment. The seriousness of her injury is not yet known.
Armed officers are at the scene ensuring the area is safe. There is no evidence that the public are at risk.
Spring Hill has been sealed off while officers investigate the incident and is likely to be closed for the next few hours.
Anyone with information should call 101 quoting serial 991 of 11/09, email [email protected] or contact the independent charity Crimestoppers anonymously on 0800 555111