Sherri Lynn Davis

Sherri Lynn Davis (nee Steeby) did not have custody of her three children who were found in Calgary after going missing earlier this week. (Calgary Police Service)

Three missing children from the United States have been found in Calgary.

Calgary police located the children and their mother Sherri Lynn Davis, whose maiden name is Steeby, in a motor home in the downtown core shortly after 1 p.m. Wednesday.

CUPS, a non-profit group who helps out families in need, says a woman turned up in a RV Tuesday in distress with three kids and several dogs looking for money and food.

"We are currently liaising with other agencies to determine next steps for the safe return of these children," said the Calgary police in a release.

The three children were reported missing from their residence in Harrisonville, Mo., earlier this week.

Their mother is now facing charges of interfering with custody in the U.S.