Explosions, fire destroy NSW home and shed

A house and two sheds have been destroyed by two explosions and a suspicious fire in southern NSW.

Witnesses reported two explosions, the second causing flames to spread from a shed in Tower Street, Corowa, to a neighbouring home and second shed on Thursday morning.

Crime scene investigators including forensic investigators are working to determine the cause.

No one was injured in the blaze which is being treated as suspicious.