A man has been arrested after a woman was found dead in Melbourne’s east.

Police were called to a welfare check on a woman in a residence on Whitehorse Road, Blackburn just after 7pm last night.

When they arrived, they found the body of the 77-year-old woman inside.

The exact cause of her death is not know but is being treated as suspicious.

A 49-year-old Blackburn man was arrested at the scene and remains in police custody.

Both parties are believed to be known to each other and police aren’t looking for anyone else in regards to the incident.

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