Inside a Gaza tunnelUpdated 1232 GMT (2032 HKT) July 22, 2015 Chat with us in Facebook Messenger. Find out what's happening in the world as it unfolds. Photos: Inside a Gaza tunnelIsrael Defense Forces took CNN correspondent Oren Liebermann into an elaborate Palestinian tunnel.Hide Caption 1 of 7 Photos: Inside a Gaza tunnelSuch tunnels play a key role in ongoing tensions. Israel says Hamas militants use them to launch attacks.Hide Caption 2 of 7 Photos: Inside a Gaza tunnelThe tunnel is wide enough to ride a motorcycle through it, and the IDF says troops found hidden weapons along its route.Hide Caption 3 of 7 Photos: Inside a Gaza tunnelIsrael is testing a new tunnel detection system but is tight-lipped on how it works.Hide Caption 4 of 7 Photos: Inside a Gaza tunnelIsrael is keeping its tunnel-detecting technology under wraps to avoid giving hints on how to counter it.Hide Caption 5 of 7 Photos: Inside a Gaza tunnelFor Israel, the tunnel detector could become as vital as its air missile defense system.Hide Caption 6 of 7 Photos: Inside a Gaza tunnelDespite the new technology, Israeli officials say they think Hamas and other groups will continue building tunnels. And Israel will keep trying to find them.Hide Caption 7 of 7Israel Defense Forces took CNN correspondent Oren Liebermann into some Palestinian tunnels. See some of the weapons seized during their operation to close the routes.More from Middle EastTillerson 'concerned' at Turkey's expanding Syria offensive 'The only ones who lost'She's only 12, but her father is already planning her weddingThe free-for-all in Syria will make your head spinFrom pilgrimage to exodus: Is the end nigh for Palestinian Christians?