A man shot by police after allegedly holding a gun to the head of two motorists is out of hospital and facing charges.

The 36-year-old man is facing three counts of aggravated wounding, aggravated assault, burglary, reckless driving and failing to stop, police say.

He is expected to appear in the Auckland District Court tomorrow.

Earlier today a 36-year-old woman was taken into custody and charged with aggravated assault and burglary.

Auckland City detective inspector Aaron Pascoe said as part of the investigation, police executed a search warrant at an Owens Rd address in Epsom last night.

She was due to appear in court this afternoon.

Police road block at the corner of Greath South Road and South Eastern Highway Penrose after shots were fired on Thursday. Photo / Supplied

Pascoe said officers were continuing to ensure support was available to members of the public caught up in yesterday's incident through Victim Support.

They were also ensuring police involved in the incident were supported as well.

In acknowledging the disruption that saw roads closed in a busy industrial area, Pascoe said police were grateful for the public's cooperation.

"Police would like to acknowledge Auckland motorists for their cooperation yesterday with the cordons that were in place in parts of Great South Rd," he said.

"This enabled police to carry out our scene examinations as part of the investigation."

Pascoe said the investigation remained ongoing and was progressing.