Irving MacArthur High School was evacuated Wednesday due to a bomb threat, NBC 5 has learned.
Irving police confirmed to NBC 5 Wednesday morning they were working an investigation at the high school after someone made a "concerning" phone call at about 9:45 a.m.
NBC 5 has learned the caller threatened the school would blow up in 30 minutes and that police recommended the building be evacuated while they conducted a search of the campus.
The latest news from around North Texas.
Officers found nothing during their search and allowed students to return to the building at about 10:45 a.m.
Irving police are investigating the incident and are working to determine who made the threatening phone call.
The high school is the same one once attended by Ahmed Mohamed, a 14-year-old student who was suspended earlier this month after he brought a homemade clock to school that was confused for a hoax bomb. Mohamed never returned to the school and said he planned to continue his high school education outside of the Irving Independent School District.
Check back and refresh this page for the latest update. As this story is developing, elements may change.