A man has been charged in connection with what police called "a disturbance" on a Fife motorway.
Officers had been called to the M90 near Dunfermline at about 19:45 on Wednesday. The police response included "specialist resources".
A 27-year-old man has been charged with road traffic and disorder offences and was expected to appear in court on Thursday.
Police are appealing for dashcam or CCTV footage of the incident.
Det Insp Graham Fenton said: "Our inquiries into this incident are ongoing and I am eager to hear from members of the public who can assist in identifying and tracing others involved in the disorder.
"I would appeal to anyone who may have any dashcam, video or CCTV footage, and has not yet spoken to officers, to come forward to assist with our inquiries."