A man is on the run after assaulting one of the police officers who found 37 grams of crack cocaine in his apartment, police say.

Around 10:30 a.m., two officers were called to 181 Jackson St. W. because of a disturbance. When the officers knocked on the door of an apartment in the building to speak with a "potential suspect," they noticed crack cocaine out in the open and attempted to arrest one of the men in the apartment, police say.

According to police, a "violent struggle" ensued and the man was able to escape. The officers recovered a loaded handgun from where the man had been seated, 37 grams of crack cocaine, and a small amount of marijuana.

A 54-year-old Hamilton man was arrested and charged with possession of an unregistered restricted weapon, possession of a restricted weapon with ammunition, careless storage of a firearm, possession of crack cocaine for the purpose of trafficking, and possession of marijuana. He is scheduled to be in court Monday.

Police are still looking for a suspect described as a 30-year-old black man, around six foot two inches tall, 220 pounds, with a muscular build and multiple tattoos on his arms.

When found, he will face the same charges as the other man, and additional charges of escaping custody and assaulting a police officer causing bodily harm, police say.

The injured officer received four stitches for a cut on his face and returned to duty.