UPDATE AT 6:40 PM: Students are home safe after after a chaotic day at school. Police and CCSD police tell 13 Action News Clark High School was put on "hard lockdown" after reports of a scuffle off campus involving a possible gun.
"We thought it was a drill," said Emily Milner.
The freshman says she was in her classroom when an announcement was made saying the school was going on lockdown.
"I could hear the alarms going off," she said.
She tells 13 Action News the classroom doors where locked and students and staff were told to remain quiet.
"I texted my mom throughout the whole thing," she said.
Outside parents waited at the nearby 7-Eleven for updates, including Emily's mom, April Dilldine.
"She texted me saying, 'I love you,'" said Dilldine. "I ran over here telling her I was coming."
There was little parents could do given the situation.
"Students are being taken care of," said CCSD police Captain Ken Young. "Students are in the classrooms they are safe. We have officers that are working inside the school along the administrators."
Just before 2 p.m. students were released to parents. Four students inside Clark High School were detained and taken in for questioning in relation to the off campus incident.
"I ran like there was pizza," said Emily Milner. "I was never so happy to be out of their and to see my mom."
Police tell 13 Action News they have not found a weapon.
UPDATE AT 1:50 PM: Las Vegas police say lockdown has been lifted.
The lock down at @ClarkChargers has been lifted. The investigation remains open. We appreciate everyone's cooperation during this event.
— LVMPD (@LVMPD) April 15, 2016
UPDATE AT 1:30 PM: Four students have been detained at Clark High School for questioning related to the incident that resulted in a lockdown at the school. Police say that no gun has been found so far. The school is still currently on lockdown.
EARLIER STORY
Las Vegas police are investigating a report of a person with a gun near Clark High School.
It was reported at 9:57 a.m. that three juveniles were involved in a confrontation near Arville Street and Pennwood Avenue and it was believed that one person was armed with a gun.
When officers arrived in the area, the three juveniles took off running towards Clark High School and were last seen running onto the school's property.
Clark County High School is currently on lockdown.
Been on lockdown for over an hour. #Pray for #ClarkHighSchool students that nothing severe happens ??
— Maria Martinez (@MariaDudeee) April 15, 2016
Construction worker says guy with gun outside Clark HS ran past him. More from him at 11:30. pic.twitter.com/9DXWgaQVgC
— Dave Detling (@DaveKTNV) April 15, 2016
Parents waiting near Clark HS. They are texting with their students. School remains on high lock down. pic.twitter.com/BL7uPaHI9k
— Dave Detling (@DaveKTNV) April 15, 2016
Two and a half hours later... Still in lockdown. #ClarkHighSchool #ImGonnaPeeMyself
— Jo (@jobananers) April 15, 2016
This is a developing story. Check back for updates.