three orfour hours. they did not find the individual and that individual has then made it into north korea. one of the things we do know, and certainly one of my sources is telling me, is it is a civilian but we don't know if it is a south korean citizen or whether or not it was a north korean defector who was here in the south, who may have wanted to try and go back north. in the uk, 20 conservative mps and peers have called on the prime minister to tackle the spiralling cost of living. five former ministers are among the signatories of a letter to the sunday telegraph, which follows huge increases in wholesale gas prices. 0ur political correspondent chris mason reports. wholesale gas and electricity prices are rising steeply. the boss of one energy firm is predicting an enormous crisis this year as a consequence. now 20 tory parliamentarians are expressing their concerns, too. their letter has been organised