Police are investigating an attempted abduction of a soldier at the Aldershot Garrison in Hampshire.
Soldiers based at the garrison have been told not to wear their uniform when travelling to or from work until further notice.
The briefing came after two men in a blue Renault Clio tried to abduct a soldier near the main Garrison Church, the British Forces Broadcasting Service reported.
The incident reportedly happened around 8.15am on Wednesday morning.
A spokesperson from Hampshire Police said: "We were called to a suspicious incident at 8.42am today at the junction between Queens Avenue and Hospital Hill, Aldershot.
"Two men were seen acting suspiciously in a blue Renault Clio.
"At this stage there is nothing to suggest that a crime has been committed but we are looking into why the two men had stopped the car on this stretch of road."
They added: "No contact was made between the two men and the person reporting the incident.
"Anyone who may have seen a blue Renault Clio with two men inside in the area this morning is asked to contact us on 101, quoting 44160289416."
Military personnel have been on high alert since the attempted kidnapping of an RAF serviceman at RAF Marham in July.
Norfolk Police said they were searching for two men "of Middle Eastern appearance" between 20 and 30 years old, who threatened the serviceman with a knife.
The serviceman was unharmed in the incident.
Police said they were "unable to discount terrorism" as a motive.
