Grayson County Sheriff's Office Reports Multi-Agency Incident Along Highway 377

By GvilleTX Newsroom

The Grayson County Sheriff's Office reported in a public post that its deputies, the Southmayd Police Department, the Texas Department of Public Safety and assisting agencies were handling an "active law enforcement incident" at locations along Highway 377. The post did not say what led to the response.

The announcement identified the lead agencies and indicated that the activity covered more than one spot on the highway. It gave no account of injuries or arrests, and it did not name the assisting departments individually. The public post reviewed for this report did not confirm a shooting, and it offered no fuller narrative of the incident.

Other basic details were also absent from the official record GvilleTX Newsroom reviewed before publication, including where along the highway the response centered, when it began and whether any portion of the road was closed.

County records describe how law enforcement is organized in Grayson County. On its official website, the county calls the sheriff its chief law-enforcement officer and says the office answers calls for about one-third of county residents. That coverage area takes in unincorporated land and three small towns that do not have police departments of their own.

The sheriff's office also operates the county's 911 center. Its dispatch division states on its webpage that it coordinates responses for the sheriff's office and for many other agencies throughout the county.

Nearby cities reflect the county's role in their own public guidance. Collinsville has its own police department, but the city's official police page tells residents who need an officer for a non-emergency matter to call Grayson County Sheriff's Office Dispatch at 903-813-4411. Tioga's official police page lists numbers for the Tioga Police Department alongside a contact for the county sheriff's office.

County spending covers both functions. Grayson County's adopted budget for fiscal year 2026 lists $8,386,404 for the sheriff and $1,654,554 for public safety communications, according to the county's published budget document. Those line items fund the office that issued the announcement and the communications operation that routes emergency calls across the county.

The sheriff's office post was the only official account of the incident in the records reviewed for this report. This story will be updated as the agencies involved release more information.