Modern GPS technology is helping a Colorado-based ministry verify that its "gospel balloons" are actually reaching North Korea.
The communist nation is known for religious persecution and has harsh restrictions on the distribution of unapproved literature.
In response, Seoul USA came up with the idea of attaching Bibles and Christian messages to balloons.
Now, the hydrogen balloons are equipped with GPS devices to ensure they reach their destination.
Rev. Eric Foley, Seoul USA co-founder and CEO, said the gospel is getting through, despite government opposition. Click play for his comments to CBN News.
"The North Korean government, for example, will tell people in North Korea not to touch anything that comes from a balloon, like a flyer or a package," he explained. "Because they say it is coated with poison, that it's a way that the Americans and the South Koreans try to poison North Koreans."
Foley added that the GPS devices provide precise verification, which makes it much easier to confirm the ministry's work in specific areas of the Hermit Kingdom.