Passengers and visitors to Logan Airport in Boston were met with heightened security measures in the wake of the deadly mass shooting Friday afternoon at Fort Lauderdale-Hollywood International Airport.

Massport and the State Police implemented a “multilayered and rigorous security plan’’ at Logan moments shortly after gunfire broke out at in a baggage claim area of the south Florida airport.

The plan includes “front-line troopers, tactical units, commercial vehicle inspection units, intelligence gathering, and other overt and covert assets, including roadway blockades,’’ Massport and the State Police said in a joint statement.

Troop F, the State Police unit assigned full-time to Logan, put “enhanced security tactics in place,’’ the statement said.

Ed Davis, the former Boston police commissioner, arrived at Logan early Friday evening on a flight from Washington. “There was an increased presence of officers with long guns patrolling the terminal with high visibility,’’ Davis said in an interview at the airport. “That’s all you can do in this situation.’’

The Associated Press reported Friday night that the alleged gunman, 26-year-old Esteban Santiago, is a veteran who served in the National Guard and deployed to Iraq.

“When you got a guy who’s been trained on how to use a gun and he’s running around in a place where nobody has a weapon, it’s a recipe for disaster,’’ said Davis, who is now a private security consultant.

Mary Boch, who is 64, said the Florida shooting left her “aghast.’’

“My husband was just talking about the police officers here, with high-caliber weapons,’’ Boch said, sitting with her son, who had just arrived on a flight from Madrid. “It’s frightening. . . . I do trust [that] there are people to protect us.’’

The Fort Lauderdale airport was expected to be closed until at least midnight Friday, according to the Federal Aviation Administration website. All flights from Fort Lauderdale to Logan were canceled Friday night, Massport spokesman Matthew Brelis said.

Kevin Goudreau, 50, arrived at Logan on a flight from Orlando, where the airport was affected by the Fort Lauderdale shooting.

“They were trying to figure out how to get people to Fort Lauderdale,’’ he said. “They were edgy. It was hectic, real hectic.’’

As she waited for her daughter to arrive on a flight from Raleigh-Durham airport in North Carolina, Catherine Burgess said she was “terrified’’ when she learned of an airport shooting.

“Then I saw it was in Fort Lauderdale,’’ Burgess said, relieved.

Burgess said she “travels the world’’ for her job at an international pharmaceutical company. Security is tight getting to passenger gates, but could be improved in areas more accessible to the public, such as baggage claim areas, she said.

“The question is, ‘How do you secure the area?’ ’’ she said.

John R. Ellement of the Globe Staff contributed to this story. Jacob Geanous can be reached at Jacob.Geanous@globe.com.