Australian police said Wednesday they have infiltrated Ghost, an encrypted global communications app developed for criminals, leading to dozens of arrests.

An encrypted app allegedly used by the criminal underworld to plan drug deals, murders and kidnappings has been exposed in a huge operation.

Europol and law enforcement agencies from nine countries have teamed up to dismantle an alleged criminal communications platform. A total of 51 suspects were arrested, 38 in Australia, where the app's creator resides.

A group of Queensland men have been arrested after federal police foiled a plot to smuggle $400 million of liquid meth into the state.