Dyfed Powys Police are investigating the death of a woman in Llandrindod Wells last night.
Her body was discovered at the property in Trefonnen Way by emergency services at 10:15pm.
Police forensic officers are at the scene. Anyone with information is asked to call Powys CID on 101.
More top news
Rain clipping the far north through the evening but elsewhere staying dry with some sunny spells.
Public Health Wales figures show 25 more cases of the virus have also been confirmed.
Photos taken on Saturday morning show Roald Dahl Plass strewn with empty beer bottles and discarded canisters of laughing gas.