Rail passengers are being warned that Chiltern Railways services are severely affected by engineering work over the weekend.

On Saturday, no trains will run between London and Bicester North, while on Sunday no trains will run between London, Bicester, Banbury and Birmingham.

On Saturday, a shuttle rail service will run between Birmingham, Banbury and Oxford for connections with First Great Western services to and from London. Passengers from Bicester North and Haddenham & Thame Parkway are advised to catch special buses to Aylesbury, for trains to London.

On Sunday, buses will run from Birmingham and Oxfordshire stations to Aylesbury for rail connections to and from London.

Arriva CrossCountry services between Oxford and Banbury will also be replaced by buses all day on Sunday.

For more details, call 08457 484950.