Firefighters are tackling multiple Berkshire fires leading to smoke causing visiblity issues on the M4.

Drivers are being asked to avoid three locations while two fires in the open and a third blaze are attended.

A field fire has broken out in Swallowfield Bypass.

Crews are attending a fire in the open in Lower Way in Thatcham.

Firefighters are tackling an incident on Ragmans Lane near Marlow Bottom

Smoke may also affect visibility on the M4.