A woman in her 60s was seriously injured after falling from her bicycle on Otago Peninsula this afternoon.

A St John spokesman said an ambulance was called to the accident on Harington Point Rd, near Wellers Rock, just before 1pm.

The woman was conscious but suffered serious head injuries from the fall and was transported to Dunedin Hospital by ambulance.

Portobello Volunteer Fire Brigade arrived on the scene before the ambulance arrived.