Information caravan for Vic murder victim

Police are seeking further witnesses after a woman was killed in front of lunchtime shoppers at a busy Melbourne shopping strip.

Mother of four Fiona Warzywoda, 33, was stabbed to death in Sunshine's busy Hampshire Road shopping district on Wednesday last week.

Police are setting up an information caravan at the site on Thursday afternoon, hoping to speak to other witnesses or people who may have taken video or photos of the incident.

Sunshine North man Craig McDermott, 38, was charged last week with murdering his de facto wife of 18 years and will appear in court again in August.