Five separate shootings took place around New Haven in a violent Halloween weekend for the Elm City.

One of the shootings was fatal, taking the life of a 17-year-old New Haven resident. Another took place near the Yale campus, at 39 Henry St. around 9 p.m. Sunday, prompting an e-mail message from Assistant Chief of Yale Police Ronnell Higgins to alert the campus. Halloween also brought law enforcement issues to the University campus: Yale Police spokesman Lt. Steven Woznyk said in a Friday e-mail that the Yale Police Department added plainclothes officers and extra foot patrols in anticipation of the holiday festivities and inebriated students. He added that the weekend sent seven students to Yale-New Haven Hospital for detoxification.

The YPD expected “a large amount” of pedestrian traffic around the campus throughout the weekend, and that they worked closely with administrators and student organizations to facilitate police presence at various on-campus events said Woznyk. These festivities included the Halloween Dance at Sage Hall, the Inferno dance party at Pierson College, and President Levin’s annual Halloween house party.

Despite an increased police presence of 45 officers, Woznyk said that the YPD did not give out any alcohol citations this weekend. Seven students were, however, sent to Yale New Haven Hospital for detoxification, he said.

Off campus, New Haven suffered a rash of weekend shootings. Police spokesman Joe Avery said in an e-mail that the first shooting occurred at the intersection of Winthrop Avenue and Maple Street at 3:24 a.m. on Saturday. The victim, 25-year-old New Haven resident John Arthur, stated he was walking on the street when he saw and heard gunfire and was then struck once in the lower abdomen. He was taken to Yale-New Haven and was listed as stable.

The second shooting of the weekend was the only reported homicide. At 1:19 p.m. Saturday, reports of gunshots came from 1710 Ella T. Grasso Blvd. in Beaver Hills, Avery said, adding that 16-year-old Daevon Landery later arrived at Yale-New Haven Hospital. Landery died soon after from injuries. The killing is the city’s 18th homicide this year.

Later that evening, at approximately 7:50 p.m. NHPD officers were sent to 68 Sylvan Ave. on a report of gunshots, Avery added. Upon arriving at the location — three blocks from Yale-New Haven Hospital — officers found a victim shot once in his upper left arm in his car, Avery said. He added that the victim was taken to the nearby Emergency Room where he was last listed in stable condition.

On Sunday, two more shootings occurred. The first, at 60 Kensington St., four blocks from Pierson College, happened at 10:45 a.m. when a victim was shot in his left foot, Avery said.

The fifth and final shooting of the weekend took place at 39 Henry St., four blocks away from the faculty offices on Prospect Street, Avery said. At approximately 9 p.m. NHPD officers were dispatched to the rear of the building a report of gunfire. Avery said the officers found a victim up on the third floor of 52 Henry St. who had been shot twice: once in the hand and once in the chest. The victim was transported to St. Raphael’s Hospital and was listed as stable on Monday.

In response to the shooting on Henry Street, near Science Hill, Higgins released an e-mail to the Yale community. “As a precaution, please avoid the areas around Ashmun and Henry Streets as the police continue to investigate and search for the suspect(s),” Higgins said in the message.

Of five students surveyed, four said they had carefully read Higgins’s e-mail.

But Hannah Morikami ’13 said she didn’t pay attention to Higgin’s e-mail. “It didn’t involve Yale students, so it’s a waste of my energy to freak out about it,” she added.

Higgins also sent out two other e-mails to the Yale community to describe robberies that occurred over the weekend.

Three assailants who displayed what appeared to be a paintball gun robbed a graduate student near Church Street South on Saturday, and another victim was robbed in front of 122 Howe St. by two men brandishing a handgun on Sunday.

But the high number of recent emails, intended to warn students about the dangers of New Haven, may reduce their effectiveness .

“The fact that we get so many emails has caused people to pay attention to the specifics less,” Jenny Bright ’13 said.

According to the NHPD website, there were 906 robberies in the city last year.