Berkeley police arrested a 21-year-old Oakland man and detained and released two juveniles whom officers said came to assist in a fight between two Berkeley High School students Wednesday.

After a Tuesday conflict at McClymonds High School in Oakland involving Berkeley High students, Berkeley Police Department received information that Oakland students were coming to Berkeley on Wednesday to fight, and it worked with Berkeley High staff to monitor the area surrounding the school. The incidents are related to a large fight that occurred at Berkeley High on April 10, which drew a crowd of 400 to 500 people.

Police investigated the man and juveniles, who did not attend the high school, and detained them at Allston Way and Shattuck Avenue, authorities said.

The two juveniles, a 17-year-old male and a 13-year-old female, were detained for truancy and released to their guardians. The male juvenile was found to be concealing a replica handgun in his waistband, authorities said.

Christopher Pugh, 21, was arrested for contributing to the delinquency of a minor and transported to Berkeley Jail. He is scheduled to be arraigned Thursday at the Wiley W. Manuel Courthouse in Oakland.

Additional Berkeley High safety staff were added, and district staff were present on campus Wednesday, according to a schoolwide email from Berkeley High principal Kristin Glenchur. In the email, Glenchur also said no visitors’ passes would be issued until further notice and recommended that students stay on campus during lunch.
At the end of the school day, Glenchur sent out another email that reported a quiet day with no interruptions to class.

Berkeley High administrators issued school disciplinary consequences to the students who were involved in Tuesday’s fight at McClymonds High School, Glenchur said in the email.

“We will continue to provide heightened safety and Berkeley Police presence as needed through the end of the year,” Glenchur said.