UPDATE: Police said Friday they have identified the suspect.

Police are asking for the public’s help to find a teen they say robbed and assaulted a 77-year-old man in St. Paul this week.

The teen knocked the older man to the ground during the attack in the North End, said Steve Linders, a St. Paul police spokesman, on Thursday. The older man hit his head on the ground.

“This was a brazen attack by a young person on an elderly gentleman who was just going about his business and it occurred in front of the victim’s granddaughter (a juvenile who was in the house),” Linders said. “We want to find the person responsible so he can be held accountable for his actions.”

On Tuesday, just after 5 p.m., officers were sent to the area of Farrington Street and Lawson Avenue, after someone called police to report a “juvenile male followed grandpa and assaulted him,” Linders said. The male had escaped on an electric scooter.

The 77-year-old was bleeding from the right eyebrow and right knee. He declined medical attention at the scene but told officers he would go to the hospital later, Linders said.

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Two men face felony charges in Bloomington home invasion The man told officers he had parked his vehicle in front of a house and was walking up the driveway when he was attacked. Someone came up from behind, struck him, reached in his pocket and stole his wallet, according to Linders.

The man needed stitches on his face and a front tooth was chipped, said Aaron Jacobs, whose daughter is the man’s granddaughter.

Jacobs said he feels horrible about what happened — the man picks up his granddaughter from the bus stop, so Jacobs can work later.

“I never thought something like this would happen in my own driveway, where my daughter plays and where we’re supposed to feel safe,” Jacobs said.

Police released video from a home surveillance system of the attack and asked anyone with information about the suspect to call 651-266-5573.

The suspect is described as a black male teenager, about 5 feet 8 inches tall, with a thin build. He was wearing an orange shirt and bright tennis shoes, which were possibly orange.