Two people have been taken to hospital after a car landed on the tracks at Stirling railway station.
A car crashed through the station's wire fence before coming to a stop on the line at about 12:15.
Just minutes later, a car came down an embankment and stopped close to the line near Corpach, west of Fort William.
Emergency services and Network Rail took part in recovery operations at the scenes of both incidents.
Police Scotland said the incidents were not linked.
Photographs of the scene at Stirling station show the dark coloured car sitting across the tracks, a short distance from a ScotRail train.
There was a large police presence on the platform.
The Scottish Ambulance Service said two people were taken to Forth Valley Royal Hospital in Larbert.
British Transport Police (BTP) said there were no serious injuries and no one had been arrested.
Officers are investigating the circumstances of the incident.
BTP said Highlands incident happened close to a pulp mill at Corpach at about 12:36.
A spokeswoman said: "Colleagues from Police Scotland attended, and the vehicle was recovered."
ScotRail said trains would be diverted around the car using platforms 6 and 9 at the station.
Network Rail Scotland said it wanted to get platforms 2 and 3 open again as soon as possible.
In the Highland incident, the car left a nearby road, went down an embankment and came to a stop close to the railway line.
Network Rail said it happened between Fort William and Mallaig and the alarm was raised at about 12:20. The incident was cleared just before 14:00.