PORT-AU-PRINCE, Haiti — A U.S. missionary held for more than a month in Haiti on kidnapping charges flew back to the United States after being released from prison, while the leader of her Baptist group remained in custody.

Charisa Coulter and Laura Silsby were the last two missionaries still in custody of 10 that were arrested for trying to take 33 children out of Haiti after the earthquake. The other eight were released Feb. 17.

Coulter, 24, was freed Monday and whisked from her jail cell to the airport by U.S. Embassy staff.

Wearing a red tank top and sunglasses, she declined comment as she quickly got into an SUV that took her to the Haitian airport, where she caught a flight back to the United States. Coulter's father said his daughter arrived in Miami late Monday and went straight to a hotel.

Mel Coulter said her release brought a mix of joy and sorrow, because the leader of the Idaho-based missionary group, Silsby, was left spending the night alone in a Haitian jail.

Silsby, 40, said she was glad about Coulter's release.

"I'm very happy that she left today, and for her freedom, and expect mine to come soon," Silsby told The Associated Press as she left the courthouse where a judge held a closed hearing Monday. She was returned to her cell in a police station near Port-au-Prince airport.

Defense lawyer Louis Ricardo Chachoute said Coulter was released because there was no evidence to support the charges of kidnapping and criminal association. He predicted Silsby would be released soon as well.

The Americans' arrest came as Haitian authorities were trying to crack down on unauthorized adoptions to prevent child trafficking in the chaos following the catastrophic Jan. 12 earthquake.