The campaign against construction of the mast near Byron Avenue, Winchester, Hampshire, has been running for almost four years.

An objection against the 12m-high mast by the campaigners was rejected by the Court of Appeal in December.

But locals say they will now take the fight to the House of Lords in a final bid to block the mast.

During the hearing at the Court of Appeal, the judges said an inspector had concluded the risk to health was minimal from the Byron Avenue site and that the proposal was acceptable.

But campaigners say "health considerations and public concern should be taken into account" when mobile phone masts are erected.