A threat involving a possibly armed suicidal person put Huntington Beach City Hall on lockdown Monday morning.

The situation unfolded sometime before 9 a.m. at Huntington Beach Civic Center, located in the 2000 block of Main Street. 

Huntington Beach police reported that the suspect had been "isolated" to a specific area. Police said the person may be armed. 

A lockdown order at Huntington Beach High School was quickly lifted, Huntington Beach City Hall and police headquarters remained on lockdown until a little before 11:25 a.m., when the suspect surrendered and was taken into custody. 

It's unclear if any weapons were recovered. There were no reported injuries. The suspect was not immediately identified. 

This is a developing story. Refresh this page for updates.