There were three separate incidences of individuals exposing themselves to Brandeis students on South Street in the last month, according to Director of Public Safety Ed Callahan.

Callahan wrote two emails to the community — on Nov. 30 and Dec. 2, respectively — that addressed two recent incidences of indecent exposure and also mentioned a prior incident.

The incident on Nov. 29, according to Callahan’s first email, occurred at approximately at 10 p.m., with the male exposing himself to a female student near Wheelock Road and the William F. Stanley Elementary School on South Street. The incident on Monday also occurred at approximately 10 p.m., though it took place near the intersection of South Street and Shakespeare Road, according to the second email.

In his first email, Callahan wrote that the Waltham Police Department listed the suspect as being a “dark skinned male, possibly Hispanic, and in his 30s.” He added that the suspect was approximately 5’8” and had a stocky build, some facial hair and was dressed in black sweatpants and a black sweatshirt with the hood up.

The incident on Monday, he wrote, also involved an episode of indecent exposure, though this time, two Brandeis students were targeted. The police report listed the suspect as being “a white male, approximately 5 foot 6 inches tall, in his 30s, husky build, wearing gray sweatpants and sweatshirt with a black beanie,” Callahan wrote.

Callahan went on to state in his second email that the Waltham Police recently notified the University of another incident of indecent exposure involving a Brandeis student that occurred earlier in November.

He also noted that the Waltham Police is currently investigating both incidences and asked that anyone with information on any of the incidents contact the Waltham Police Department, and that anyone wishing to report a new incident contact the University Police as well.

Callahan concluded his email by reminding students to be cautious and aware when out at night. “As always, be mindful of your surroundings and please report any suspicious incident or activity to the Brandeis Police,” he wrote.

—Abby Patkin