Forth Worth Independent School District is investigating a social media post by a reported substitute teacher. The teacher apparently wrote that U.S. Immigration and Customs Enforcement should visit the school where they work because it has “many students who don’t even speak English.”

“Y’all should come to Fort Worth, TX to Northside High School,” the post reads in response to an ICE post, according to a screenshot making the rounds on social media. “I have many students who don’t even speak English, and they are in 10th-11th grade. They have to communicate through their iPhone translator with me. The @USEDGOV should totally overhaul our school system in Texas.”

The user’s account is private, and HuffPost was unable to verify the post.

In a statement on social media, Fort Worth ISD said they are aware of the post, which has “caused concern among” the school district.

“We take this matter very seriously and are conducting a thorough investigation to understand the circumstances and ensure appropriate actions are taken,” the statement reads.

The school district told NBCDFW that the teacher won’t be on campus during the investigation.

Since President Donald Trump, who campaigned on mass deportations of immigrants, took office last week, ICE has arrested nearly 1,000 immigrants. Trump authorized ICE to raid schools and churches, ending a policy that was put into effect in 2011. A Chicago school said last week that they turned away ICE at their doors. However, ICE denied being there.

Karen Molinar, the school district’s interim superintendent, told NBCDFW in a statement that the district does not ask about the immigration status of its students and their families.