A cyclist has been seriously injured following a crash involving a vehicle near the intersection of Durham Street South and Bath Street in Christchurch.

A police spokesperson told chrislynchmedia.com emergency services were called to the scene just before 2pm.

A St John spokesperson said an ambulance, an operations manager and a rapid response vehicle attended.

One patient was assessed at the scene and was  transported to Christchurch Hospital in a serious condition.

Police confirmed the roads have since been cleared.