Police have urged residents who witnessed the alleged murder of a woman in broad daylight in Deniliquin to immediately seek out support services.

A Deniliquin man has been arrested and charged with murder after setting his sister on fire in the yard of a Dick Street, Deniliquin, house at about 1.50pm on Wednesday.

Murray River Police District Superintendent Paul Smith said it was a 'traumatic incident' for witnesses.

Police will allege the 42-year-old victim sustained severe head injuries before being set alight by her 31-year-old brother.

Superintendent Smith said the man appeared before Griffith Local Court today and was remanded in custody to reappear on February 8.

"Obviously a number of local people, Deniliquin being a small town, are awfully distressed at witnessing this incident, remember there are support services, Lifeline, Beyond Blue," he said.

Police will allege the murder was domestic violence related.

Superintendent Smith said the incident began in the Dick Street home, before continuing in the front yard where the victim was located and the man arrested.

A number of neighbours contacted police.

Superintendent Smith reassured the community they were not seeking anyone else in relation to the incident.

"Any homicide is atrocious, atrocious to the family, atrocious to the friends..." he said.

"I think [murders are] difficult in all communities. What probably magnifies it in a community like Deniliquin is so many people are known to each other, they're small tight knit communities, but then again there is that support in the community."

If you need support contact 1800RESPECT (1800 737 732) or Lifeline (13 11 14).

PREVIOUSLY

A man has been charged with murder after a woman was injured and set on fire in Deniliquin yesterday.

Police allege a 42-year-old woman sustained significant head injuries before being set alight at a Dick Street Deniliquin home on Wednesday.

Police officers from the Murray River Police District were called the home on Wednesday at about 1.50pm.

Officers attempted to assist the woman and a male senior constable sustained burns to his hand while attempting to extinguish the blaze.

IN OTHER NEWS:

The woman died at the scene.

Police established a crime scene and are investigating.

A 31-year-old man, who was known to the woman, was arrested at the home and taken to Deniliquin Police Station.

He was subsequently charged with murder (DV) and refused bail to appear at Deniliquin Local Court today.

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