OTTAWA, ON. -- A registered nurse from Ottawa is facing mischief charges after allegedly failing to give prescribed medications to at least 25 long-term care patients in a single day.

City police say they began investigating the 48-year-old man after the home reported the alleged incident in May.

They say they investigated the nurse's activities for a 12-month period, but the current charges stem only from the alleged May incident.

Police describe the alleged withholding of medication as "disturbing," but say it does not appear to have caused any bodily harm.

They say no other employees of the home appear to be involved.

The man is facing one count each of mischief and mischief to data.