The explosions at the Boston Marathon Monday guaranteed a flurry of contact among the world's largest races of its kind, including the annual New York City race that is contested in November and Sunday's London race, and prompted a statement by Nassau County Executive Edward Mangano regarding the May 5 Long Island Marathon.

Mangano said county police "will be holding a security meeting this Wednesday, with subsequent security briefings in the weeks leading" to the annual Long Island race, which starts and finishes in Eisenhower Park.

Mangano asked residents to "remember our 'See Something, Say Something' campaign."

New York City Marathon director Mary Wittenberg, who was in Boston to watch the elite runners finish, left before the explosions occurred roughly two hours later. She said she expected to be in touch by late evening with officials of the other major marathons which, like New York's and Boston's, offer lucrative prizes to top professionals and include massive fields of amateur runners.

"What the Boston Marathon team needs now might be simply moral support," Wittenberg said. "And, looking to London, we'll lean on each other as needed, and look to how we all react. You've got to pause and see if there's anything to learn."

The Associated Press reported that British authorities already were reviewing security plans for the Sunday race in London, which had a field of 37,500 runners last year.

Wittenberg reminded that New York "always" has put a priority on security, "and especially after 9/11, we elevated our plans. The NYPD is the lead and [security] is extensive, as you can imagine. Local, state, national and beyond."

advertisement | advertise on newsday

Because marathon participants and spectators intermingle, the kind of airport-style security checkpoints often seen at sporting events such as the Super Bowl do not exist.