NEW MERLIN OBSERVATIONS OF OH IR STARS - OH357.31-1.33 AND OH0.9+1.3/

We present recent radio interferometer measurements of the OH 1612 MHz maser emission from the OH/IR sources OHD.9+1.3 and OH357.31 obtained with the enhanced MERLIN. Some preliminary results are briefly discus sed. These results are part of an on-going observational campaign to o btain the best radio maps of bright OR/IR stars with MERLIN, VLA and V LBA, in order tb understand the nature and dynamics of their circumste llar matter and evolution.