ABSTRACT
In a kinematic study of LMC \hii\ regions, we serendipitously found a fast-expanding (velocity offsets up to ∼200 \kms) shell in the northern lobe of the luminous \hii\ region N159. The expansion pattern and the \sii/\ha\ ratio of the shell are consistent with those seen in supernova remnants (SNRs). Confirmation of this SNR candidate in radio and X-ray wavelengths has been hampered by thermal emission of the luminous \hii\ region N159 itself and scattered X-rays from the nearby luminous source LMC X-1. Recent {ROSAT} observations finally resolved N159 from LMC X-1, thus confirming the identification of this as a newly identified SNR, which we designate as SNR 0540-697.