Little Mix's Jesy Nelson is on an "extended" break from the group, according to the BBC.
The publication reports that the UK band's publicist shared the information in a statement.
"Jesy is having extended time off from Little Mix for private medical reasons," it reads.
"We will not be issuing any further comment currently and ask media to please respect her privacy at this time."
The 29-year-old was missing from the group's performance at the 2020 EMAs and missed the final episode of their BBC One talent show, Little Mix: The Search.