We report the first study of OH ( 1720 MHz ) masers in the LMC in order to probe regions where supernova remnants interact with adjacent molecular clouds .
Using the ATCA , we observed four sources in the LMC and detected a single OH ( 1720 MHz ) maser with a flux density of 377 mJy toward 30 Doradus .
No main line emission at 1665 or 1667 MHz was detected .
The observed OH ( 1720 MHz ) maser emission from 30 Dor shows characteristics similar to the well-known collisionally-pumped supernova remnant masers found in the Galaxy , though 30 Dor is known as a star forming region .
It is possible that shocks driven by a nearby supernova remnant or by strong stellar winds from young stars are responsible for production of OH ( 1720 MHz ) maser in 30 Dor .
Future studies are required to distinguish between collisional and radiative pumping mechanisms for the 30 Dor OH ( 1720 MHz ) maser .