AMBULANCE chiefs have backed moves to merge the county authority with three others but have warned services must not suffer.

The Board at Lancashire Ambulance Service NHS Trust is to support plans to scrap it for a larger North West authority.

But chief executive David Hill said members wanted "assurances that the community of Lancashire will not be at risk of decreased service performance, and that resources will not be lost to the larger conurbations in the southerly areas of the North West."

The authority was given the top three stars in the last performance ratings by the Healthcare Commission.

Only one of the other authorities it faces being merged with Greater Manchester Ambulance Service has the same rating while the other Trusts, covering Cumbria and Mersey region, have one and no stars respectively.

He said: "The creation of a single trust will deliver greater strategic capacity to develop, redesign and achieve service delivery and will enable greater economies of scale and purchasing power."

The final decision will be taken by the Department of Health.