Police have warned Heather Mills-McCartney that they have received intelligence of a threat to her safety, it has emerged.
Officers spoke to the 38-year-old and her estranged husband, Sir Paul McCartney, 64, on Thursday about the "non-specific threat" from the Merseyside area.
Ms Mills-McCartney was also told the names of the people who had made the threat, Sussex Police said.
Officers have taken steps for an "immediate police response" to be available to her if it is needed, a force spokesman added.
According to reports, she has been given a panic alarm which allows her to contact Sussex Police headquarters directly. However, officers have said there is "no imminent risk" to the model.
Bernie Murphy, Sussex Police Force Command and Control Centre Supervisor, based in Brighton, said: "On Thursday 14 December 2006 information was received from police in the Merseyside area which indicated a non-specific threat towards Heather Mills-McCartney.
"In accordance with normal police practice, and also taking into account the Osman ruling, the threat was risk-assessed.
"Police can confirm that Mills-McCartney was spoken to by officers and was fully informed of all the information, including details of the names of individuals involved. In addition, Mills-McCartney's estranged husband was also spoken to.
"Police are satisfied there's no imminent risk to Mills-McCartney.
"Local officers have been fully briefed regarding the circumstances and provision has been made for an immediate police response should this be necessary."
