Officials in Massachusetts and elsewhere in New England are increasing security after explosions rocked the Brussels, Belgium, airport and subway system Tuesday, killing at least 31 people and injuring many others.
Massachusetts State Police said they are monitoring the attacks and have directed increased patrols in areas near the state's transportation centers, including airport and seaports.
"At this point we have no intelligence that suggests any nexus between today's attacks and Massachusetts," state police spokesman David Procopio said in a statement.
Boston Police echoed those sentiments, saying there are "no credible threats" at this time, but they are asking all officers to pay close attention to transit locations throughout the city to be safe.
The FBI said it has also stepped up its efforts in the wake of the attacks.
Harold Shaw, special agent in charge for the FBI's Boston office, said the agency is "closely monitoring the situation," and collaborating closely with its federal, state, local and community partners.
The Massachusetts Port Authority said safety at its hubs - including Boston’s Logan Airport - remains a priority.
"Security at our facilities is multi layered and constantly evolving," MassPort said. "We do not talk about specific tactics both those that are visible and those that rely on technology. The safety and security of the people who use and work in our facilities is our top priority.”
The Massachusetts Bay Transportation Authority also said its personnel and police are "stepping up their vigilance and visibility today." Transit Police will have more uniformed officers in stations and on train platforms.
Both Amtrak and Transit Police says they're in contact all the time with local, state and federal officials.
Amtrak says their security measures are "robust."
"It is important to note, there is no intelligence, and or threat, credible or otherwise that would suggest the MBTA which would suggest the MBTA is a target," said Superintendent Richard Sullivan of the MBTA Transit Police.
Massachusetts Gov. Charlie Baker offered his sympathies to the victims and their family members and reminded residents that security would be increased throughout the state.
"While there has been no credible threat to our state, Massachusetts law enforcement and homeland security teams continue to work with our federal partners to share and analyze all available intelligence information," he said. "Security has been strengthened for our public transit systems and airports and law enforcement teams will remain vigilant to ensure the safety of our citizens."
New Hampshire Gov. Maggie Hassan said there is "no known or immediate threat" to residents, but state officials are working with federal and local public safety officials to "exercise extra vigilance."
Boston Mayor Marty Walsh took to social media along with area police departments to offer their condolences.