A Pasadena resident was arrested for shooting to death a dog Tuesday night.

It wasn’t clear why the dog was killed.

Around 10 p.m. Tuesday, a caller reported gunshots and two men arguing on the 1000 block of Summit Avenue.

Arriving officers spotted people running north on Summit and also saw a man heading toward an apartment and found a medium-sized dog shot dead on the street, Pasadena police Lt. Pete Hettema said.

Police described it as a pit bull. The weapon had not been found.

Video caught at least part of the incident.

“The dog came out in the street,” the lieutenant said. “You could see him point something at the dog.”

Officers arrested Arthur Williams of Pasadena on suspicion of animal cruelty and possession of a firearm. Williams was booked at the Pasadena jail and still in custody as of Wednesday morning, his 58th birthday.