Chilling 911 calls reveal students' terror after mass shooter stormed Nevada university campus - with one petrified woman heard stifling her panicked screams as she hides under her desk just steps away from gunman

Newly released 911 phone calls reveal the terror experienced by students as a mass shooter opened fire on Nevada University's campus on Wednesday. 

Three people were left dead after suspected gunman Anthony Polito, 67, opened fire after recently being rejected from a job at the college. 

The victim's, Cha Jan Chang, Patricia Navarro Velez and Naoko Takemaru  were all faculty members. Polito died at the scene after a firefight with police. 

'Someone's shooting inside the office,' a woman told responders on a 911 call. 

'Please hurry,' she pleaded as gunshots can be heard in the background. 

The operator asked if anyone else was with her, and she replied, 'It's just me... I'm alone.' 

A second 911 caller said, 'I was getting off the elevator. I heard shots fired and screaming and I ran.

'Lots of students are running out...Two officers ran into the building and I ran out of the building' they explained. 

Scared parents also called 911 telling authorities their children were hiding in classrooms.

One mom said her daughter could hear the gunshots. While the mom was on the phone with 911, she got a text from her daughter saying, 'Mom, I'm scared.'

The operator said the mother should tell her daughter 'to stay calm -- and tell her do not open that door unless she hears them yelling. They will announce, 'Metro police.'

Police said Polito had a list of people he intended to target but when he could not locate them he opened fire indiscriminately, ABC news reported. 

A fourth victim was shot but was in a stable condition on Wednesday night. 

The officers involved in the shootout with Polito were identified as  Det. Nathaniel Drum, who has been employed with the University Police services since 2017, and officer Damien Garcia, who has been on the force since 2018.

Both have been placed on administrative leave amid an investigation, as per department policy. 

'These two officers are heroes,' Adam Garcia, police chief for the University Police Services Southern Command said on Friday. 

'They kept the worst from becoming a bloodbath.' 

Joe Biden said the shooting - coming the day after six were shot dead in Austin and San Antonio - was 'not normal, and we can never let it become normal.'

Biden said he was saddened that the university 'became the latest college campus to be terrorized by a horrific act of gun violence.'

He thanked the first responders, and said it showed that more must be done to end the epidemic of gun violence.

'This year alone, our nation has experienced more than 600 mass shootings, and approximately 40,000 deaths due to gun violence. This is not normal, and we can never let it become normal,' he said, in a statement issued by the White House.

'For all the action we have taken since I’ve been President, the epidemic of gun violence we face demands that we do even more.

'But we cannot do more without Congress. Republican lawmakers must join with Democrats in Congress to ban assault weapons and high-capacity magazines, pass a national red flag law, enact universal background checks, require the safe storage of guns, and advance other commonsense measures that will help stem the tide of gun violence.

'And together, we must do more to prevent more families, and more communities like Austin, San Antonio, and Las Vegas, from being ripped apart by gun violence.'