A 25-year-old man has been charged with gun and drug-related offences after a mother of four mother was allegedly shot dead in her home near Geelong, Victoria.

Police and emergency services were called to the Conrad Court property in Whittington just after 9pm on Wednesday.

When they arrived on the scene, they found 31-year-old Emily Miller allegedly suffering from a gunshot wound to her torso.

Emily Miller , 31, died in the alleged shooting. (Facebook)

Ambulance Victoria rushed Ms Miller to hospital, but she died in the ambulance.

A 25-year-old man was arrested at the home, and was questioned by police yesterday afternoon.

Today investigators charged the man with prohibited person possession firearm, trafficking heroin and possession of heroin.

Emily Miller was a mother-of-four. (Supplied)

He has been remanded in custody to appear before Geelong Magistrates’ Court today.

Homicide Squad detectives continue to investigate the circumstances surrounding the alleged shooting.

Yesterday friends told 9News the mum's 18-month-old daughter was home sleeping at the time of the incident but was unhurt.

Ms Miller's new partner is assisting police with their investigation. (Facebook)

The grandmother and uncle of two of the woman’s children told 9News of their devastation.

“She’s a loving mum and that’s all that mattered. She didn’t deserve this, no one does. It’s just horrible,” Doreen Forehan said.

“Not to forget that there's four little innocent children in this that have lost their mum so it's just devastating.”

A man has been charged following the incident. (Nine)

Investigations are ongoing. (Nine)

“(She was) a little character, just full of energy,” Trent Forehan added.

Anybody with information is urged to call Crime Stoppers on 1800 333 000.