A second unexploded vintage bomb was discovered Tuesday morning at the Institute of Chemistry Teaching Building on the University of the Philippines Diliman campus, authorities and student publications reported.
The Philippine Collegian, the campus paper, said the ordnance was found inside the chemistry building, prompting the suspension of morning classes.
Officials closed the road between the chemistry building and the nearby Research Building as a safety precaution while the scene was secured.
This find came just a week after a similar vintage bomb was unearthed in front of the same building, as reported earlier.
The bomb discovered Tuesday was part of ongoing construction-related activity on campus, and no injuries were reported, according to available accounts.
Authorities have been responding to multiple vintage bomb discoveries at the Diliman campus in recent years due to its history as a World War II target.
Campus officials and security teams were working with police to assess the situation and determine next steps following the latest find.
Further details had not been released by authorities as of Tuesday afternoon.