The carmaker, which has 13,000 staff in the UK, is the latest to warn over the impact of Brexit uncertainty

Ford has become the latest carmaker to sound the alarm over Brexit, saying that it is stepping up preparations to move production out of Britain.

The business, which has 13,000 staff in the UK, told the prime minister on a private call with business leaders that it was preparing alternative sites abroad.

The warning comes after Nissan announced last week that it was cancelling plans to build a new model in its Sunderland plant, a decision that it attributed in part to Brexit uncertainty.

During the call Theresa May confirmed reports that the government was preparing a package of financial support for businesses affected by a no-deal Brexit but declined to elaborate.

Another participant said that other companies delivered the same warning as Ford. “The