DETROIT (WWJ) - Efforts are underway to find a Detroit woman who has gone missing in Peru.

Carlos Valpeoz says his 35-year-old sister Carla Valpeoz -- who is almost totally blind, but an experienced traveler -- visited Machu Pichu where she met up with a group of people.

She went dancing with them the night of Tuesday, December 11, before heading back to the Pariwana Hostel in Cusco, and disappeared after that.

A member of our AANM family, Carla Valpeoz, has gone missing while traveling in Peru. Carla has extremely low vision. She was last seen on December 12 at Pariwana Hostal in Cusco.

If you have any information, notify police + call/text Carlos at 210-326-8887 / c.valpeoz@gmail.com pic.twitter.com/pDfoo4bQzu — Arab American National Museum (@ArabAmericanMus) December 17, 2018

"I've spoken to everyone that she was with that night, and they said she wasn't visibly intoxicated, she didn't take any drugs, anything like that," Carlos Valpeoz told WWJ's Zahra Huber. "She had just had a couple of drinks, and they were mainly just dancing, socializing, talking about their adventures."

"She felt very safe with these people she had met," he added, "and apparently they were nothing but nice to her."

He said sister the next morning messaged one of the men in the group she met at Machu Picchu the next morning.

"(She told him) that she was going out on a day trip; she didn't say exactly where, but she would be back around 1 p.m. and she would call him so that they could meet up and maybe check out some museums," Carlos Valpeoz said.

But the two never connected and loved ones became concerned when Carla missed her flight home to Detroit.

No one has heard from her since, her phone seems to be turned off and there been no activity on her credit cards.

Carlos Valpeoz said the family is now working with the Peruvian embassy and the FBI to find her. "I just want my sister to come back safe," he said.

Carla Valpeoz is 5 feet 1 inch tall with brown hair and brown eyes, carries a green backpack, and uses a cane to help her get around. She works at the Arab American National Museum in Dearborn as a docent.

Anyone with information should call police. Tipsters may also call or text Carlos Valpeoz at 210-326-8887.