UPDATE: Portland police announced Thursday morning that Greta Gray has been found and is safe. Original story below:

PORTLAND, Ore. – Police are asking for the public’s help with finding a 64-year-old woman who hasn't been seen since Wednesday.

Greta Ellen Gray left her secure residential facility in the 2200 block of Northeast Siskiyou Street at around 4 p.m. She was walking to a Starbucks at Northeast 15th Avenue and Fremont Street but never returned home, according to Portland police.

Gray has become disoriented and gotten lost before, police said.

She was described as a 5-foot-4, 140-pound white woman with long white hair. Gray was last seen wearing a gray wool coat over a yellow sweater, black pants and black shoes.

Anyone who sees Gray is asked to call 911 so officers can check on her welfare.

Anyone with non-emergency information is asked to contact detective Lori Fonken at 503-823-1081.