Authorities are searching for an 80-year-old man who was last seen leaving his home Tuesday evening.

BEXAR COUNTY, Texas — The Bexar County Sheriff’s Office is asking for the public’s help in locating a missing 80-year-old man who walked away from his residence Tuesday evening.

Ronald Armstrong, described as 5-feet-11-inches tall and weighing about 180 pounds, has blue eyes and blonde hair, according to authorities.

Investigators said Armstrong left his home in the 22800 block of Allegro Creek at approximately 8 p.m. and has not been seen since.

Officials noted that Armstrong has a medical condition that requires attention.

His whereabouts are currently unknown.

Anyone with information is urged to contact the Bexar County Sheriff’s Office at (210) 335-6000 or email the Missing Persons Unit at missingpersons@bexar.org.