If you're within earshot of TCU's emergency sirens, just know, this is only a test.
TCU will test its emergency mass communication systems Tuesday afternoon. The campus loudspeakers will blare, emergency lighting will flash on campus, landlines will be called and cell phones will be sent a text message.
Local emergency responders have already been notified, so there is no need to call police or anyone else if you hear TCU's sirens.
Folks who are signed up to receive TCU's campus alerts (mostly students, faculty and staff) may receive more than one notification.
But, it's only a test, and all the messages TCU sends out will say so.
TCU anticipates the test will last approximately two minutes. Officials would not narrow down the time window in which the test would occur, as tests are conducted to simulate actual emergency situations.