A man is recovering after a stabbing inside a plasma donation center on East Ridge Road in Irondequoit.
Police say two men got into an argument, and one of them pulled out a pocket knife.
The victim was stabbed in the stomach and on his arm.
A nurse at the center stepped in right away and gave first aid before paramedics arrived.
He was taken to the hospital and is expected to survive.
Officers say they have the suspect in custody, and charges are pending.