As police search for two young refugees who were roughly treated by security guards in Malmö last Friday, Swedish media report that 825 unaccompanied minors have disappeared in the past five years.

Hundreds of refugee children disappear in Sweden every year, Swedish Television News reported Friday. Last year, a record 374 went missing, according to the Swedish Migration Board, and only 59 have been tracked down.

The majority of the unaccompanied minors who disappeare are between 15 and 17 years old, but since 2012 as many as 90 children under the age of 12 have also gone missing.

Katia Wagner, a...