Scotland fans have been warned it will take them over an hour to complete security checks to get into the World Cup opener next weekend, as stadium organisers revealed they have called up the National Guard to assist.
Steve Clarke's side will end a 28-year wait to return to the tournament in the early hours of next Sunday morning with a game against Haiti.
Tens of thousands of Tartan Army fans are expected to travel to Massachusetts to attend the match at the Gillette Stadium in Foxborough.
But they have been urged by Foxborough police chief Michael Grace to resign themselves for a long wait to get through the beefed-up security measures.
He said: "Plan ahead, know your transportation route and arrive early.
"From the time you arrive at the stadium, it may take over an hour to reach your seat due to the enhanced security measures.
"For fans without tickets, coming to the stadium on match day is not permitted. You will not be able to access the train system, the parking lots or the stadium campus.
"These layered security protocols are in place to ensure your safety. So give yourself time and be patient."
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And along the security will be the US National Guard - the military reserve organisation of the United States Department of Defence - who have been called up to provide extra manpower.
The state's Public Safety and Security Secretary Gina Kwon explained: "It reflects the careful planning underway to support our local partners, strengthen coordination and meet the extended operational demand of an event of this scale.
"The National Guard activation came at the request of the Foxborough Police Department.
"They will support fixed security posts around the Stadium, including perimeters, entrance gates and other access-control locations identified through the security planning process."
