Following what’s being called an altercation in a bar, police are searching for Charlie Sheen’s ex-wife Brooke Mueller and his 7-year-old twin sons Bob and Max, according to a report on TMZ.com.

The incident began when Mueller reportedly “wandered into a Salt Lake City bar” with the boys Tuesday night, barefoot and “looking disheveled,” TMZ reports. Mueller reportedly moved to Utah earlier this year.

“Witnesses say there was a nanny with them and Brooke got into an altercation with her,” TMZ reports. “We’re told someone called police because of the fight and the fact Brooke had 2 kids in a bar. We’re told Brooke bolted before they arrived — and then started popping up at several hotels in the area, trying to get a room.”

Authorities contacted Sheen, and as of this morning they still had not located Mueller and the children.

Sheen told the publication: “I’m just trying to get my kids home safe. I have no other details that relate to the ongoing event.”