Police in Knoxville, Tennessee said on Monday they were responding to reports of a shooting at a high school there with at least several victims.

ā€œMultiple gunshot victims reported, including a KPD officer. The investigation remains active at this time,ā€ Knoxville police said on Twitter.

Authorities did not say if the gunman had been taken into custody but the Knoxville News-Sentinel reported that one person had been detained in connection with the shooting.

Television news images showed police and fire crews surrounding Austin-East High School in east Knoxville.

ā€œKnox County Schools is responding to a shooting that occurred this afternoon at Austin-East Magnet High School. We are gathering information about this tragic situation and will provide additional information as soon as possible,ā€ Knoxville schools superintendent Bob Thomas said on Twitter.

ā€œThe school building has been secured and students who were not involved in the incident have been released to their families,ā€ Thomas said.

Local 10 News reported that the school had been placed under a ā€œhard lockdownā€ and that parents were told to go to the back of the campus to pick up their children.

Advertisement

A string of mass shootings have unfolded across the United States since mid-March.

Last week a man opened fire at the cabinet-making plant in Texas where he worked, killing one person and wounding six others before he was taken into custody.

Eight people were slain at Atlanta-area spas, 10 people at a supermarket in Boulder, Colorado, and four people, including a 9-year-old boy at a real estate office in Orange, California.

(Reporting by Dan Whitcomb, Editing by Rosalba O’Brien and Grant McCool)