Two black teenagers were arrested Thursday in the assault on a young Jewish man, police said. The assault raised racial tensions in Crown Heights, Brooklyn.

Besean Parker, 14, and Namor Clarke, 17, will be charged as adults with robbery, according to police. Police also said the assault on 16-year-old Alon Sherman was not motivated by bias. Clarke was arrested before this incident for robbery.

Sherman was riding his bicycle after midnight to buy baby formula for his younger brother, when two teenagers knocked him to the ground near Albany Avenue and Empire Boulevard in Crown Heights and robbed of his bike, watch and cell phone. He suffered a fractured jaw in the assault. Investigators deemed the assault a “crime of opportunity” that was not racially motivated, a law enforcement source said, according to the Daily News.

Besean Parker’s brother, 13, said that his older brother did nothing wrong and shouldn’t be prosecuted as an adult. “He was there, but he didn't hit the kid,” said Jalen outside his Crown Heights home, according to the same source. “He's young and he's a good person. He just got himself at the wrong place at the wrong time.”

The assault came nearly a month after Andrew Charles, the 20-year-old black son of a police officer, was assaulted, reportedly by a member of a Hasidic anti-crime patrol and after black children threw rocks through the window of a school bus carrying Jewish toddlers on May 12.