One person is in a critical condition, while another is in a serious condition, after a crash involving two vehicles near Riversdale this afternoon (29 Oct).

Emergency services were alerted to the accident at the intersection of Mandeville Kingston Crossing Road, and Dunn and Cody Road, at 2.15pm.

Police said the road, a popular shortcut route between Lumsden and Gore, had now been closed and diversions were being put in place.

The Serious Crash Unit has been advised.