The Donna Police Department in Texas on Thursday arrested four males, including two juveniles, in connection to threats made against a Donna school, according to local reports. 

The threats came two days after 19 elementary school students and two teachers were killed in a mass school shooting in Uvalde on Tuesday, leading to threats from a handful of copycat actors across the state in the days that followed.

Donna Independent School District office Texas

The Donna Independent School District in Donna, Texas, announced Wednesday night that it will be canceling school district-wide on Thursday and Friday after receiving a "credible threat of violence." (Google Maps)

The Donna PD arrested and charged Nathaniel Seth Montelongo, 17, and Barbarito Pantoja, 17, with conspiracy to commit aggravated assault with a deadly weapon, local news outlet MyRGV.com reported. "We stopped an act of physical violence and harm on our students," Donna PD Chief Donald Crist said.

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The students are being held on $750,000 bond, according to the outlet.

Police said two other minor students were arrested in connection to the incident after receiving a tip that the group was planning to carry out an attack against an unspecified Donna school.

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The Donna PD and Donna Independent School District (ISD) did not immediately respond to inquiries from FoxNews.com.

The Donna ISD released a statement Thursday announcing that classes had been canceled amid threats to the district and in light of the tragedy in Uvalde.

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"The safety and security of our students and staff is our first priority," the announcement said. "Classes will resume Tuesday morning."

Authorities continue to investigate Tuesday's shooting at Robb Elementary in Uvalde that left 21 people dead.