Up to eight young men remain on the run after punching and kicking an innocent father inside his Melbourne home.

David McGregor, 59, answered a knock on the front door of his Narre Warren South home on Ormond Road just after 10pm yesterday when he was attacked.

As the father-of-two opened the door, the group of up to nine men stormed the home and began to repeatedly kick and punch him in the ribs and head.

David McGregor, 59, answered a knock on the front door of his Narre Warren South home on Ormond Road just after 10pm yesterday when he was attacked. (Nine)

The attackers pinned him to the group and repeated kicked and punched him. (Nine)

"I was pinned to the floor, my arms were put behind my back," Mr McGregor told 9News.

"Someone came up my side and kicked me in the face, someone was kicking me from the other side.

"I thought I was about to die, I thought they would use a knife in the kitchen and come and stab me. I was that scared."

Meanwhile, the other offenders ran through the house, stealing $300 cash and keys to his 2006 red Holden Commodore sedan before fleeing.

Mr McGregor, who recently retired as a baker after a heart attack, was then taken to a local hospital for his injuries when the thieves returned and stole his car.

"My body is fragile, I've had a heart attack and a stoke,” he said.

Mr McGregor thought it was odd when he heard a knock on his door at 10pm. (Nine)

"I even told them I had a heart attack and a stroke but they still beat the s--- out of me."

His car was recovered by investigators about 2pm today on a Narre Warren street. The search for the offenders is ongoing.

“We’re looking for a group of six to eight males, between 16-20 years of age and we believe African in appearance,” Detective Senior Sergeant Brad Sprague said.

Mr McGregor has since been released from hospital and is suffering from severe bruising and potentially a cracked rib.

(Nine)

"I don't blame these people for coming to this country to have a better life, but have the better life. Don't try to steal from other people to make your life better," he said.

"My message to them is don't steal from other people when you haven't got a life of your own.

"Everyone else works for a life and there is nothing wrong with earning a living."

The victim said he now wants to leave Narre Warren.

"My life is up in the air, I don't know where I'm going to go from here," Mr McGregor said.

"Every time I close my eyes I kept seeing them come through the door, I'm having major flashbacks.

Investigators have been at the property following the assault. (Nine)

Mr McGregor, who recently retired as a baker after a heart attack, was then taken to local hospital for his injuries when the thieves returned and stole his car. (Supplied)

"It's getting to me."

Anyone with information is urged to contact Crime Stoppers on 1800 333 000