General public visitation to the U.S. Naval Academy in Annapolis has been suspended following the attacks on Iran by the United States and Israel.

The academy and Naval Support Activity Annapolis said Saturday they were increasing force protection measures, including closing Gate 1 by Halsey Field House, until further notice.

Visitation to the campus for academy-sponsored events is permitted, but visitors with tickets to events or attending events will need to ride a shuttle bus from Navy–Marine Corps Memorial Stadium and will have to have a Real ID.

Visitors with ID cards from the Department of Defense or Defense Biometric Identification System will be able to walk or drive onto the academy grounds for events.

“Expect increased security measures at the gates, upon entering shuttle buses, and throughout the installation,” NSAA officials wrote on social media.

The Naval Academy and the Navy did not immediately respond to requests for comment.

Greenbury Point, a conservation area managed by NSAA, is also closed until further notice. The closure applies to access roads, trails and the nature center.

The Naval Academy has long had interest in building a second golf course there, but that was recently blocked by a defense spending bill.

The “Trusted Traveler” program, which allows a properly credentialed visitor to bring a guest onto the academy grounds, is suspended.

Mitchelle Stephenson, a spokesperson for the city of Annapolis, said municipal officials were not aware of specific information about the security measures beyond what’s been shared online.

Some Marylanders protested the attacks in the Middle East over the weekend. The strikes against Iran killed Supreme Leader Ayatollah Ali Khamenei and at least 200 others; the U.S. military said three service members were killed.