FREMONT -- A police officer who interrupted a robbery suffered moderate injuries in a scuffle with a suspect who was arrested in connection with the attack, police said.

Officers were called at 8:54 p.m. on Saturday to the intersection of Paseo Padre Parkway and Isherwood Drive after a 21-year-old Fremont resident dialed 911 and said a man tried to steal her cell phone as she sat in the passenger seat of her boyfriend's red Saturn, said police spokeswoman Geneva Bosques.

The suspect was later identified by police as Arthur Kwok, 30, of San Jose, and was arrested on suspicion of second-degree robbery, obstructing executive orders and resisting arrest.

The victim told the dispatcher that before the attack, her boyfriend had stopped the car after they saw the suspect standing in the street waiving his arms for help. She said the suspect walked up to the passenger side window and told her he needed to call someone for help.

When the victim attempted to dial a number for the suspect he began yelling at her then tried to take her phone, Bosques said.

After the failed theft, the suspect ran off and the woman dialed 911 for help.

The victim told a dispatcher she would wait in the car until police arrived, but a police officer happened to be in the area and noticed a man matching the suspect's description walking back up to the red Saturn.

At that point the suspect reached into the car a second time, attempted to grab the phone and then hit the woman in the chest, Bosques said.

Seeing the action, the officer quickly got out of his patrol car and ordered the suspect to lie on the ground, Bosques said. When the suspect ignored the officer's command and started to walk off, the officer grabbed the suspect's arm but the suspect quickly pulled away.

A struggle ensued, the officer took the suspect to the ground and a fight broke out. Soon after, four other officers arrived and helped their fellow officer get handcuffs on the suspect.

The officer suffered minor to moderate injuries including cuts, scrapes, bruising and injuries to his hand

No other injuries were reported, Bosques said.

Contact Natalie Neysa Alund at 510-293-2469. Follow her at Twitter.com/nataliealund.