Three people were fatally shot and a fourth person was critically wounded in an attack on the University of Nevada, Las Vegas, campus on Wednesday, police said.

When gunfire erupted at the University of Nevada, Las Vegas, a woman hiding alone under an office desk called 911 in tears. "Someone’s shooting inside the office," she said. "Please hurry." The operator asked her how long ago she heard the shots,

The 911 calls released Friday give some insight into the moments after an active shooter opened fire and killed three people on UNLV's campus.

Fire alarms blared in the background of recorded 911 calls that police released of terrified students and faculty this week at the University of Nevada, Las Vegas.

A suspect is dead after three people were killed at the University of Nevada, Las Vegas, according to the Las Vegas Metropolitan Police Department.

Las Vegas police said three people were killed and one person was wounded after a shooting on the University of Nevada, Las Vegas, campus.

Dr Naoko Takemaru, an associate professor in the Department of World Languages and Cultures, was identified after her next of kin were informed by the coroner’s office, UNLV president Keith Whitfield said in a statement.

The third victim to die in a shooting at UNLV's campus on Wednesday is identified as 69-year-old Naoko Takemaru, according to the Clark County coroner's office.