ST. LOUIS (AP) — The push to oust Ferguson’s mayor has hit a snag after a group pressing for the recall failed to gather enough valid signatures. Eric Fey of the St. Louis County Board of Election Commissioners says that while 1,814 valid signatures were needed to remove James Knowles III from office in the St. Louis suburb, only 1,008 were certified.

Signatures must be from Ferguson residents who were registered to vote during the last mayoral election.

A message left Tuesday by The Associated Press with an activist group behind the recall drive was not immediately returned.

The issue may not be over. According to Ferguson’s charter, pursuers of the recall have an additional 10 days to add more signatures.