CHARLOTTE, N.C. – Seven aid workers who are part of Samaritan’s Purse relief efforts in South Sudan have been freed by their captors.

Samaritan’s Purse is an aid organization run by Franklin Graham, the son of evangelist Bill Graham.

Ken Isaacs from Samaritan’s Purse said the seven workers released Tuesday are in good condition and have been moved to a more secure area.

Isaacs said the seven people were not kidnapped but were “detained,” and there was never a demand made for a ransom.

Isaacs said, “No demand for ransom was made to us. We’ve been feeding people in the area for two years and why would they need to make a ransom demand when we were already giving food away?”

A rebel group denied an earlier foreign press report that their troops had seized the aid workers.

What exactly did happen to them and how they were released remains a mystery.

Samaritan's Purse was working to provide food to villagers in the area where the men were detained.

Isaacs said the incident points to the gravity of the situation in a country where years of violent conflicts have prevented farmers from planting and growing crops that could end the famine faced by some 4 million people.

Said Isaacs, “The place is really a mess. It’s a dangerous one to work in.”