CRYSTAL LAKE – A pit bull bit a U.S. Postal Service worker’s hand Tuesday as he worked his Crystal Lake mail route, officials said.

The dog, named Lucy, was unleashed and unattended when the bite occurred at 2:44 p.m. Emergency workers found Lucy on the front porch of her home in the 800 block of Boxwood Drive. Her owner arrived shortly after the incident.

The dog was not current on its registration or vaccinations, Animal Control spokeswoman Debra Quackenbush said. Lucy’s owner was given 24 hours to take the dog to a veterinarian for a 10-day rabies confinement observation, which is required in any bite investigation.