A memorial honoring the school shooting victims at Robb Elementary is seen on July 12 in Uvalde, Texas.

Eric Gay/AP

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Eric Gay/AP

A memorial honoring the school shooting victims at Robb Elementary is seen on July 12 in Uvalde, Texas.

Eric Gay/AP

The Uvalde school district said Friday that it’s suspending the entire district police department.

The move by the Uvalde Consolidated Independent School District comes during an investigation by the Texas Police Chiefs Association and JPPI Investigations into law enforcement’s delayed response to the Robb Elementary School shooting in May. Nineteen students and two teachers were killed.

“Recent developments have uncovered additional concerns with department operations,” the district said, adding that currently employed officers will move to other roles in the district. A report on the investigation is expected later this month.

The Texas Department of Public Safety will provide coverage for campus and extracurricular activities for the time being.

The school district has placed Ken Mueller, the department’s director of student services, and Lt. Miguel Hernandez, the acting police chief, on administrative leave. Mueller has chosen to retire, the school district’s statement said.

Pete Arredondo — the schools police chief who oversaw the law enforcement response to the May 24 shooting — was fired in August.

Former TDPS trooper Crimson Elizondo, who was part of the delayed response to the shooting at Robb Elementary, was fired from the school district police department after pushback from parents.

Brett Cross, whose 10-year-old son Uziyah Garcia died in the shooting, had been protesting outside the Uvalde school administration building, demanding transparency and accountability — the first step of which he tweeted as being the suspension of involved officers. After 254 hours outside the building, demonstrators went home when UCISD issued the press release.