A local train operator is introducing a reduced timetable from Monday due to staff isolation. 

Govia Thameslink Railway which operates Thameslink and Southern, has a number of staff isolating after contact with a positive Covid 19 case, meaning there are fewer people available to operate services. 

Among the Thameslink routes affected is the Gatwick Airport to Bedford service.  Affected Southern routes include London Bridge to Caterham and Tattenham Corner. 

Passengers are advised to check before they travel because additional changes might be needed.