Officials will discipline the Newark Liberty International Airport guard who briefly left his post, triggering a security breach that delayed flights worldwide.

The Transportation Security Administration, saying it’s a private personnel matter, would not name the guard or say what would happen to him.

However, the TSA says he’ll return to work.

The guard was placed on paid administrative leave two days after a Rutgers University graduate student used the guard’s absence to duck under a barrier to say goodbye to his girlfriend on Jan. 3.

The breach closed Terminal C for six hours and caused flight delays around the world. The student pleaded guilty to defiant trespass on Tuesday.

The guard’s leave ends on Saturday.

Copyright 2010 The Associated Press.