Football fans are being reassured that additional checks will be in place when Sunderland play Stoke City on Saturday.
Those visiting the Stadium of Light will be subject to the extra checks at the turnstiles and inside the stadium itself.
Supporters are being asked to arrive early, show patience during the entry process and report any concerns to the nearest steward.
Paul Weir is Sunderland AFC's head of safety.
He said: “We want to reassure supporters that additional measures are in place in light of recent events, and the safety of everyone at the Stadium of Light is always our priority.
“We would ask supporters to take heed of the advice issued and to show patience with stewards and safety officials as they conduct their duties.
"Whilst such measures may inconvenience some supporters, we are sure that everyone attending the game will understand why we have to rigorously apply such rules and procedures.”
Sunderland AFC will be actively applying the terms and conditions of entry to the stadium, as provided by the Premier League Ground Regulations to ensure the safety and security of both home and away fans.
These regulations include that the club can refuse entry to the stadium to anyone who does not consent to a search. Large bags and rucksacks will not be permitted to be brought in the ground under any circumstances, nor will supporters be permitted to store such items at the stadium.
Small bags such as handbags will be allowed, however anyone carrying a bag is advised that it will be searched on entry.
Flasks, containers, bottles, cans and other such items will not be permitted in the stadium.
Anyone attempting to bring such items into the stadium will have them confiscated. The same protocols apply to the stadium’s Fan Zone area.