HOUSTON (AP) — A Houston police officer has fatally shot a one-armed, one-legged man in a wheelchair after police say the double amputee waved a metal object that turned out to be a pen.

Police spokeswoman Jodi Silva says man cornered the officer early Saturday inside a group home after police were called there to check on a disturbance.

Silva says the man was making threats while trying to stab the officer with the pen. She says the officer did not know what the metal object was at the time.

Silva says the man came "within inches to a foot" of the officer and did not follow instructions to calm down and remain still.

Police did not immediately release the man's name. The officer, Matthew Jacob Marin, has been placed on administrative leave.