KEY POINTS:
A group of cows disrupted traffic on the Northern Motorway north of Christchurch this afternoon.
Police said about five cows were on the southbound lanes near Kaiapoi.
Police and staff from the State Highway roading agency were at the scene and the cows were rounded up without incident.
Motorists were earlier urged to take care and reduce their speeds.
- NZHERALD STAFF, NZPA
