Photo via Howard University

After police cleared the university following the report of an active shooter on Tuesday, Howard University officials cancelled classes for the rest of the day, but said that all homecoming activities will continue as planned.

“Howard University is going to have a homecoming—we had already and will continue to plan a very safe event and we have those resources already in play to do that,” said Howard’s interim police chief Alonzo Joy at a press conference this afternoon.

This week, Howard Bison are celebrating both homecoming week and the historically black university’s 150th year in existence.

After a two-year hiatus, the Howard Homecoming Parade is set to return with bands, celebrity appearances, and more on Saturday morning. Students are awaiting the names of headliners for the annual YardFest, which previously hosted acts such as Jay Z, Faith Evans, Kanye West, and Drake. The staple football game against conference rival Morgan State University is also slated to draw hundreds of students and alumni who trek to “The Mecca” each year for the annual festivities.

The sesquicentennial homecoming will also include two new events—the #YouTubeBlack FanFest featuring performances by black Youtube stars and the Inaugural HU Ideas Festival showcasing “provocative conversations, ideas, and discussions on the most important issues of today,” according to a university release.

As students geared up to celebrate, though, officials received a series of calls about an active shooter on campus starting around noon.

Metropolitan Police Department Patrol Chief Lamar Greene said at the press conference that police received a report of a shooter at the school’s administrative building, which was subsequently evacuated around noon. Joy said university officials then received a call of a shooter at the college’s School of Medicine, in addition to other buildings on campus.

Over nearly two hours, staff and students were instructed to shelter in place as D.C. and campus police searched a total of four buildings, Greene said. Police eventually gave the all clear, saying that a suspect had not been found and no injuries were reported.

“We have found no evidence, no witnesses, nothing that supports that there was a shooting on our campus at any location. But it does not stop here—our investigation is continuing,” Joy said. “There are going to be some serious repercussions if we identify who was engaged in this, but right now we really want to continue with our investigation to find out why this occurred.”

The scare came less than two weeks after police arrested a 24-year-old man who they say anonymously threatened to kill people at the college nearly two years ago.

“I don’t think these things are connected,” said HU president Wayne A.I. Frederick, who announced that classes were cancelled for the rest of the day.

“Obviously, we have a campus in a big urban city and some of these things are going to happen from time to time—that doesn’t make it acceptable in any way, shape or form,” he said. “And it doesn’t mean we’re going to let our guard down in keeping our campus safe.”