An 18-year-old Haleiwa man allegedly robbed a 17-year-old boy at gunpoint at a Kaimuki shopping center 1:40 a.m. Monday.

Police said the boy was walking through the parking lot when he recognized the man from a youth program they had attended together.

The man allegedly pointed a handgun at the boy, then allegedly demanded his money and fled in a light-colored vehicle, police said.

Police found him at his Haleiwa home and arrested him at 4:30 a.m. on suspicion of first-degree robbery.