This follows the voluntary withdrawal of teaching and assessment component of service on Monday by the members of the National Academic Staff Association at the UPNG.
University Vice Chancellor Professor Albert Mellam said the stop work by the staff is illegal as it is not properly sanctioned by the university and the Industrial Registrar.
Mellam said any staff member who participates in this illegal action is in breach of contract and will be subject to corrective measures of the University Council based on legal advice.
