Emergency services were last night trying to free one person from the car after the crash on the A9 Perth to Inverness road near Carrbridge at around 7.30pm yesterday. The Scottish Fire and Rescue Service said reports suggested there was a head-on collision.
Campaigners have been fighting to have the stretch between Perth and Inverness, frequently dubbed Scotland's most dangerous road, into a dual carriageway.
Police said diversions were put in place after the crash about 25 miles south of Inverness. The Scottish Government proposes to dual the A9 from Inverness to Perth by 2025, and the entire length of the A96 by 2030.