State Highway 1 has now fully reopened to traffic near Milton following a serious crash this morning.
One person was flown to Dunedin Hospital with serious injuries after being trapped in their vehicle following the crash, which occurred when a van and car collided near the SH8 intersection about 10.30am.
The accident happened on SH1, near the intersection with SH8 to Queenstown, a police spokeswoman said.
SH1 was closed, with detours in place, until one lane was reopened to traffic about mid-afternoon, a police spokeswoman said.
The Serious Crash Unit was investigating, but no information about other occupants of the vehicles was available yet.