Police have made an arrest after a man was found in an underpass with a serious head injury.

Officers were called to the walkway in Biggin Street, Dover - which remains cordoned off - at 1am.

The victim in his 60s was taken to hospital where he remains there in a serious condition.

A 36-year-old man, of no fixed address, has been arrested in connection with the incident and is helping with inquiries.

Meanwhile CCTV is being reviewed and anyone with information is urged to call Kent Police.

The walkway runs beneath Townwall Street and is the safest route from Bench Street to Cambridge Terrace and the promenade.

Two officers are at the scene, guarding each end.

The incident comes as Operation Stack has been implemented along the M20.

Anyone with information should call police on 01843 222 289 quoting 46/47245/19.

Alternatively speak to the independent charity Crimestoppers in Kent, anonymously, on 0800 555111.