Update: Two plain-clothes law enforcement officers were on the Grant campus and have been identified as the individuals seen carrying weapons.
The lock down is lifted and an all-clear has been issued.
The Michael J. Grant Campus is presently under lockdown.
Both Public Safety and Suffolk County Police Department are present and conducting an investigation following a report of a potential weapon.
If you are currently on the Grant Campus, please remain in a secure location.
Those outside the campus should refrain from entering until further instructions are provided.
This is a developing story that will be updated when more information is available.