DALLAS — Early Monday morning, Spanish House Elementary was the target of another break-in. 

Owner and Executive Director Catherine Wallace said the school has been broken into three times this year.

"As soon as the glass break happens, the alarm sounds. So I think the alarm scared him off the first time," Wallace said. "The second time, he was in and out in 40 seconds." 

He stole cash during the second incident.

The school quickly changed their money-handling protocol and removed all cash from the building. The suspect did not steal anything on Sunday during the third break-in.

Wallace said all the incidents happened after school hours, and assures the students are safe. But she said it is frustrating. 

"It is very unsettling, of course, to be woken up in the middle of the night and have to come see that someone has damaged our property," Wallace said.

Police confirmed the incident at Spanish House Elementary at 7159 East Grand Avenue. Another burglary with similar break-in methods is being investigated at 7330 Gaston Avenue. It happened the same morning.

Metro Paws Animal Hospital also confirmed with WFAA that they were broken into on Sunday around the same time.