U.S. airports have increased security following yesterday's terror attack in Turkey.
Air travel has slowly started to resume between the United States and Turkey, but anxiety remains.Following the blast that killed at least 41 people and injured more than 230, the FAA put an immediate ground stop to all flights to and from Istanbul.
Major airports have also stepped up security in the wake of the attacks.
Additional police officers equipped with tactical weapons, bomb-sniffing dogs and armored vehicles are now a common sight across the country.
Homeland Security says it's monitoring all activity at the Istanbul International Airport, and are working closely with domestic and international agencies.
Now parts of Istanbul's airport have already reopened, and workers are now removing debris.
So far, no group has claimed responsibility for the attack, but officials say it has all the marks of ISIS.