Three cyclists have been seriously injured after a crash west of Nelson.
Police were called to the incident on Neudorf Rd, in Dovedale, around 3.20pm.
A fourth cyclist was also involved in the crash and is in a moderate condition.
All were transported to Nelson hospital.
No vehicles were believed to be involved. Police are making inquiries about whether the cyclists were together in a pack, and if there were others with the cyclists.