A serious accident saw the A9 closed in Perthshire for more than four hours on Friday evening.
Two cars were involved in the smash, which occurred at around 4.40pm.
An air ambulance was scrambled to the scene around a mile south of Ballinluig services, but was stood down.
No information has yet been issued about casualties or the extent of any injuries.
All lanes were closed in both directions between Ballinluig and Dunkeld, causing lengthy delays for motorists.
A Police Scotland spokesperson said: “There was a lot of traffic congestion.
“There were diversion routes but these were congested as well. It was gridlock.”
Delays of at least two hours were reported and drivers were having to cross a narrow bridge on a back road unsuitable for larger vehicles.
Traffic Scotland reported that traffic was very slow due to the road closure and warned people to expect delays.
It tweeted: “The diversion route is also very heavy. HGVs are struggling to pass each other.”