The shelter-in-place message advised individuals to remain indoors until further notice as police conducted searches around the busy station.

On April 20, 2025, a report of gunfire near the Harvard Square MBTA station prompted a shelter-in-place order as authorities searched for a suspect.

The incident occurred around 2:15 p.m., leading to immediate police action and public safety measures.

Multiple agencies, including the MBTA and Cambridge Police, have not provided immediate comments regarding the incident.

The first alert urged individuals to shelter in place while the suspect was being sought, followed by a second alert confirming the ongoing search.

Surveillance images released on social media show the suspect wearing a light grey hoodie, a black mask, and black pants.

Students expressed concern over the delay in alerts, with some stating that it could jeopardize safety.

Witnesses reported hearing three to four shots and saw a male suspect fleeing the scene toward Brattle Street with what appeared to be a handgun.

A third alert was issued shortly after 3 p.m., lifting the shelter-in-place order but leaving many confused about the suspect's status.

Authorities confirmed that the investigation is ongoing, with updates expected as more information becomes available.

As the situation developed, a news crew from WBZ-TV was dispatched to provide updates.

No injuries have been reported, and normal operations resumed by 5 p.m. as the area began to bustle again.