WASHINGTON – From the World Trade Center and Times Square in New York to the White House and sports venues across the country, police patrolled in packs and deployed counterterrorism teams Monday as security was stepped up after explosions at the Boston Marathon.
Worries also reverberated across the Atlantic, where an already robust security operation was being beefed up for Wednesdays ceremonial funeral for former Prime Minister Margaret Thatcher. The event at St. Pauls Cathedral, to be attended by Queen Elizabeth II and other dignitaries, calls for a procession through the streets of London.
British police were also reviewing security plans for Sundays London Marathon – the next major international race – because of the bombs that killed three people and injured more than 130 in Boston.
Across the U.S., security was tightened at landmarks, government buildings, transit hubs and sporting events.
FAA enacts no-fly zone over Boston
The Federal Aviation Administration created a no-fly zone over the site of two explosions at the annual Boston marathon on Monday, and briefly ordered flights bound for Bostons Logan International Airport held on the ground at airports around the country.
About an hour after the explosions the FAA issued a notice to pilots that a no-fly zone with a 3.5-mile radius had been created over 811 Boylston St. The zone was later reduced in a subsequent notice to a 2.3-mile radius. The zone is limited to flights under 3,000 feet in altitude, which is lower than most airliners would fly except when taking off or landing.
The no-fly zone was effective immediately, and will remain in effect until further notice, the agency said.
FBI to take lead on investigation
The FBI is taking charge in the criminal investigation of the explosions at the Boston Marathon.
The announcement came Monday night at a news conference in Boston.
Also on Monday night, the FBI said it had set up a phone line for members of the public to call with information about the explosions to contact the law enforcement agency. The call-in number is 1-800-CALL-FBI (1-800-225-5324), prompt No. 3.
No piece of information or detail is too small, the FBI said in urging the public to respond.
The FBI said it is seeking information, visual images or details regarding the explosions along the marathon route and elsewhere.
In Congress, bombing labeled terrorist act
With little official information to guide them, members of Congress said Monday there was scant or no doubt that the deadly Boston Marathon explosions were acts of terrorism and vowed to bring anyone responsible to justice.
My understanding is that its a terrorist incident, Sen. Dianne Feinstein told reporters, saying she had been in contact with U.S. intelligence agencies. Feinstein, who chairs the Senate Intelligence Committee, said intelligence officials reported no advance warning that there was an attack on the way.
The remarks stood in contrast to President Obamas own brief statement at the White House, where he made no mention of terrorists or terrorism.
Pacers-Celtics game canceled
The Boston Celtics home game against the Indiana Pacers scheduled for Tuesday night has been canceled because of the Boston Marathon bombings.
The NBA says Monday that the game will not be rescheduled.