Saturday's report says smugglers used a house near Jordan's northern border and dug tunnels for smuggling and carrying out terrorist attacks. Petra says the Royal Engineering Corps has been instructed to destroy the tunnels and remove the pipeline.
The report did not say how far the smugglers' alleged plans had advanced or provide other details.
Pro-Western Jordan has been targeted by Islamic extremists in the past.
It has beefed up border security in response to long-running conflicts in Syria and Iraq where Islamic State extremists once controlled large areas before being pushed back.
Copyright 2018 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.