Tactical officers were told to hold back from entering the Texas elementary school by local police during the Tuesday shooting, a new report says.

When federal immigration officers arrived at the elementary school, local police would not allow them to go after the shooter, 18-year-old Salvador Ramos, according to the New York Times, the latest amid claims Uvalde police did not respond with sufficient speed to stop Ramos.

The Border Patrol and Immigration and Customs Enforcement agents arrived between 12 p.m. and 12:10 p.m., far earlier than previously reported, according to officials briefed on the situation. However, they did not breach the classrooms where the gunman was until after 1 p.m., police acknowledged. The members of that team shot and killed Ramos.

UVALDE GUNMAN SAID, 'YOU'RE ALL GONNA DIE,' BEFORE SHOOTING: STUDENT

The Border Patrol and ICE officials did not understand why they were delayed, according to officials.

The gunman locked himself in a pair of connected classrooms and shot multiple students within the first few minutes of the assault, according to officials. Local police, at the time, were reportedly focusing on evacuating students and teachers from the rest of the building.

Law enforcement attempted to enter the classroom, but Ramos fired at them, injuring two officers in the process, officials said.

CLICK HERE TO READ MORE FROM THE WASHINGTON EXAMINER

Parents reportedly begged police to enter the building for upwards of 40 minutes to stop Ramos from continuing to shoot, but officials appeared hesitant to enter. The elite tactical agents thought they were attempting a "suicide" mission when they charged in, according to Homeland Security officials. The police delayed their entry due to uncertainty about the shooter's location, according to Texas Public Safety spokesman Lt. Chris Olivarez.

The school had extensive security preparations in place, according to reports. The school had engaged in school shooter simulations in 2020 to practice how they would stop a shooter, and the city's SWAT team was taught the school's layout.