It was spotted on the A90 towards the Forth Road Bridge.
Tributes To Boy Found Dead
Tributes have been left at a house in Clackmannanshire where a five-year-old boy was found dead.
Police were called to the property in Carnaughton Place in Alva yesterday morning, after concerns were raised about his welfare.
The boy had a "significant injury" to his body and was pronounced dead at the scene by the Scottish Ambulance Service.
A 32-year-old woman has been detained in connection with the death and a report has been prepared for the procurator fiscal.
Floral tributes and cuddly toys have been left outside the house today, with one card reading, "Dear God, why???".
Another note attached to a bunch of flowers read: "sleep well little one."
The death is not being linked to the discovery of a woman's body just hours earlier in nearby Falkirk.
A man has been arrested in connection with the death in Springfield Drive at around 12.30am yesterday.
Chief Superintendent Davie Flynn, local police commander for the Forth Valley, said: "I would like to stress that in both cases individuals have been detained by police and we are not looking for anyone else in connection with them."
Jim McCafferty used to work at Celtic, Hibs and Falkirk.
Michelle Thomson says her attacker was known to her.
A woman who has been charged with driving six times over the legal drink-drive limit had two children in her car, police have said.
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