What happens when a blue alert is issued for the first time?

Posted October 25, 2018 11:30:37This is the first blue alert that the United States has issued since President Donald Trump issued his order barring citizens from seven Muslim-majority countries.

The order also temporarily suspended the refugee program for 120 days, barring entry to the United State for refugees from Iran, Iraq, Libya, Somalia, Sudan, Syria and Yemen.

In addition, citizens from Syria, Iraq and Sudan are barred from entering the U.S. for 90 days.

The Associated Press contributed to this report.