Farmers have been notified about a man on the run from police near Murchison.

Police are advising residents in the rural area, not far from Maruia Falls to increase security until he's caught.

They're not providing any details about him, but say he fled from police near Hanmer Springs yesterday in a vehicle.

His tyres were punctured by road spikes, but when his car ground to a halt - he took of into dense bush and hasn't been seen since.