Firefighters from West Sussex Fire and Rescue Service have been called to tackle a blaze which has broken out in a property in Edgell Road.
Firefighters were called to the house at 11.19am this morning (Saturday, 18).
Six pumps, including engines from Hampshire have been called to tackle the fire.
A spokesman for West Sussex Fire and Rescue said there were reports of people in the property although nothing has been confirmed.
An update on the incident will follow soon.