Fort Worth high school on lockdown after student photographed with gun on campus, authorities say

Fort Worth's O.D. Wyatt High School is on lockdown after a student reportedly took a photo of themself with a gun on campus, authorities said Monday afternoon. It is the Fort Worth Independent School District's first day of the school year.

Five people, including the student who took the photo, have been detained, Fort Worth ISD said in a statement to CBS News Texas.

The district said police are investigating the circumstances around the photo and all students and staff are safe. Fort Worth ISD said the lockdown has been initiated as a precaution.

Parents and families are asked not to go to the O.D. Wyatt campus at this time, and to allow law enforcement and school personnel to finish their work. 

"Families should rely on official school district and law enforcement communications for verified updates," Fort Worth ISD said.