UPDATE: The man accused of killing one Hermann, Missouri, police officer and wounding another in a double shooting has been taken into custody.

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HERMANN, Mo. — One police officer is dead and another seriously injured after a shooting in Hermann, Missouri, on Sunday night.

Detective Sgt. Mason Griffith, 34, was identified as the officer killed, and Officer Adam Sullentrup, 31, has been taken to a St. Louis hospital for treatment. 

The Missouri State Highway Patrol says Kenneth Simpson, 35, allegedly shot two Hermann police officers Sunday night.

The man suspected in the shootings is believed to be inside a home. Officers have had the building surrounded since early Monday morning.

Broken glass and gunshots were heard coming from a second floor window. “Come out with your hands up and nothing will happen to you,” could be heard over a bullhorn.

Troopers and other authorities have been outside the home located on Market just off 11th asking Simpson to surrender since early Monday. It’s not clear if Simpson is inside the home.

The shooting happened just before 9:20 p.m. Sunday at the Casey’s on Market Street in Hermann. The circumstances of the shooting are not being released, other than the suspect shot two Hermann police officers.

Many schools in the area did not hold classes Monday. The Gasconade County R-1 School District announced that “It is out of an abundance of caution and the desire to ensure the safety of our students and staff that we are closing campus for today.”

Gov. Mike Parson also tweeted about the tragedy, adding, “Hermann Police Department Detective Sergeant Mason Griffith will never be forgotten, and Missouri will always be grateful. Teresa and I are praying for Mason’s family, friends and fellow law enforcement officers.”

FOX 4 will update this story with more information as it becomes available.