The remaining 12 of the 17 people who had been held hostage in Haiti are free, exactly two months after they were kidnapped by a Haitian gang.

Sixteen members of Ohio-based Christian Aid Ministries are U.S. citizens, including 5 children. The 400 Mawazo gang that took the group specializes in mass kidnappings and seeks a $17 million ransom.

Seventeen missionaries were kidnapped by an armed gang in Haiti on Saturday. It was the latest in what experts are calling a kidnapping crisis in the country — a crisis largely driven by one gang.