As investigations continue into the terrorist truck attack in New York City that left at least eight people dead and several more injured on Tuesday, officials are shoring up security for Sunday's kickoff of the New York City Marathon.
With more than 51,000 runners expected including a contingent from Bermuda, the annual 26.2-mile race is one of the largest in the world. As many as 2.5 million spectators could be along the race route.
In preparation, the New York Police Department has added more sand trucks and vehicles along the course — the most ever deployed at the event, according to Carlos Gomez, NYPD's chief of department. He said they have more than doubled the number of rooftop observation teams and counter-sniper teams, and there will be more heavy weapons teams and police dogs throughout the city as well.