A man who allegedly stabbed his partner and their baby daughter to death in a suburb south of Brisbane has been charged with two counts of murder.

Kate Paterson, 37, a Year 5 teacher at Windaroo State School, and her 11-month-old daughter April were found by police with fatal stab wounds on Thursday morning.   

Police had initially rushed to reports of a pedestrian with a neck wound who was hit by a car outside a nearby Woolworths – on Beaudesert Beenleigh Road at Bannockburn – at about 7.30am.

When officers went to an address 300m away in Belivah to alert the man’s next of kin, they found the bodies.

A trail of blood allegedly led from the home to where the father, 38-year-old Blake Seers, was hit by a ute. He was rushed to Princess Alexandra Hospital in a serious condition, where he remains under police guard.

Detective Superintendent Chris Ahearn confirmed the three all lived at the home where the dead mother and daughter were found.

Both died from critical injuries from an edged weapon, police alleged. They confirmed on Tuesday night Seers had been charged.

Witnesses raised the alarm after seeing a man allegedly running along a footpath before he was hit by a black utility about 300m from the family home.

Evidence markers were placed along the sidewalk, allegedly marking a trail of blood leading from the house in the hours after the killings.

Seers, who suffered serious injuries, remains in hospital and is due to appear in Brisbane Magistrates Court by video link on Wednesday.

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