An elementary school teacher in El Paso, Texas, is being investigated for an assignment in which he had fourth graders draw depictions of the terrorist attacks of Sept. 11, according to school district officials.

The mother of one student told local news station KFOX that her daughter was asked to draw a "boom cloud, the planes hitting, and people jumping out of the windows," for an assignment on the anniversary of the terrorist attacks Tuesday.

Children drew pictures of people jumping off of buildings with the words "Help" and "I love you," according to the report.

The teacher of the class has been placed on leave while the incident is investigated, according to a spokeswoman for the school.

"(The El Paso Independent School District) is very concerned about the images that were drawn in response to a lesson on the events of September 11," the school district said in a statement to ABC News today.

"District and campus administrators immediately launched an investigation into the specific assignment that led to the drawings, however, the investigation is not yet complete," the statement read. 'The teacher is on leave pending the results of the investigation."

Ivie Gremillion, the mother of the girl who drew the "boom cloud," said that her daughter and other children were frightened by the assignment. A young neighbor said he thought the attacks happen every year on Sept. 11, according to the report.

"He was under the impression this happens every 9/11, and he was scared to leave his house and go to school yesterday," she said.

Gremillion could not be reached by ABC News today.