MADISON, Wis. -

The family of an 85-year-old woman who went missing Monday sent a letter to thank Madison police and community members for helping bring her home safely.

Nien Mu was found near a business on Odana Road around 4:30 p.m., officials said. She went missing from a vehicle that was parked in a lot in the back of West Towne Mall earlier Monday afternoon.

The family wrote in the letter, "please extend our gratitude to all the officers and everyone who helped today. We don't know what we would've done otherwise."

Police were concerned for her welfare because she suffers from dementia-type symptoms and does not speak English.