Two Kailua-Kona men and a 17-year-old boy were arrested shortly after a robbery Tuesday night in the parking lot of Coconut Grove Market Place.

An assault was reported at 11:30 p.m., and Kona patrol officers learned that a 27-year-old Kailua-Kona man had been confronted by three young men who attacked him, threw him to the ground, beat him and took his backpack, police said.

As the assailants prepared to flee in a blue Ford Bronco, the victim reached into the SUV and retrieved his backpack, police said. The suspects then fled the scene in the SUV.

The victim suffered scrapes and a cut to his face but declined medical treatment.

At 11:47 p.m., police located the SUV and its occupants on a dirt road behind a gas station on Henry Street in Kailua-Kona. They arrested the 18-year-old and 20-year-old and the boy on suspicion of robbery.

The juvenile was released to his parents early this morning. The adults are being held at the Kona police cellblock.

Police ask that anyone who may have witnessed the robbery call Detective Myra Iwamoto at 326-4646, extension 281.