A cordon is in place in the Calcot area of Reading due to an ongoing gas leak.
Thames Valley Police were called at 7.19am to a report of a gas leak near Calcot Golf Club, after a fallen tree damaged a gas pipe.
Police officers and firefighters from the Berkshire Fire and Rescue Service have enforced a 560m cordon for the safety of the public.
Approximately 40 properties are being evacuated.
More top news
Dry and sunny tomorrow and feeling warm.
Mild tonight with warm sunny spells and light winds tomorrow.
A section of the M3 has been closed and bomb disposal units are at the scene after reports of "potential hazardous material in the road".